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Professor Stahlman

ruthless dismissive stubborn reckless brilliant arrogant obsessive aggressive authoritarian
Professor Stahlman heads the Wenley Moor deep-drilling project at the East Coast Research Centre, directing nuclear-powered operations to harness limitless crustal energy. He commands absolute authority over the project, overseeing operations with Petra Williams as his loyal assistant. Stahlman's arrogance and ruthless determination drive him to accelerate drilling despite warnings from safety advocates, including Sir Keith Gold, Greg Sutton, the Doctor, and UNIT's Brigadier Lethbridge-Stewart. His dismissive attitude toward risk assessment and concealment of personal vulnerabilities (e.g., exposure to the green ooze) underscore his obsession with achieving a scientific breakthrough at any cost. Stahlman overrides safety objections, orchestrates sabotage to protect his authority, and prioritizes the project's success over personal safety or ethical concerns.
85 appearances
Geothermal Drilling Operations
Also known as: STAHLMAN, Director Stahlman, Professor Stahlman, Director, Professor

Professor Stahlman's Journey

A timeline through the narrative

85 moments
S7E19 · Inferno Part 1
Stahlman crushes Gold’s authority over drilling

Stahlman is arrogant and dismissive, but beneath his bravado, there’s a hint of paranoia—he views any challenge to his authority as a threat to the project’s success. His emotional state is one of entitlement, bordering on delusion, as he refuses to acknowledge the potential consequences of his decisions.

Professor Stahlman aggressively reasserts his absolute control over the drilling project, dismissing Gold’s safety concerns as meddling. His condescension—comparing Gold’s oversight to 'canteen facilities'—exposes his obsession with the project’s success …

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S7E19 · Inferno Part 1
Stahlman ignores Slocum’s transformation

Righteously indignant and impatient, with a dismissive attitude toward Gold’s concerns

Professor Stahlman dismisses Gold’s concerns about the drilling operation’s maintenance, insisting on his sole authority over technical decisions. He orders the immediate acceleration of drilling speed despite warnings, prioritizing the …

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S7E19 · Inferno Part 1
Stahlman’s Gas Revealed as Catastrophic Risk

Not directly observable, but inferred as arrogantly confident—his quotes suggest a man untroubled by moral or practical constraints.

Professor Stahlman is never physically present in this scene, but his influence looms large. Gold’s repeated references to 'Stahlman’s gas' and his deferential quoting of Stahlman’s vision ('a vast new …

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S7E19 · Inferno Part 1
Sutton’s Role as Emergency Specialist Revealed

Not directly observable, but inferred as obsessive and dismissive—Stahlman’s absence suggests he is either unaware of or indifferent to the risks his project poses, embodying a dangerous detachment from the consequences of his ambition.

Professor Stahlman is never physically present in this scene, but his influence looms large over the exchange between Gold and Sutton. His name is invoked repeatedly—through the project’s moniker ('Stahlman’s …

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S7E19 · Inferno Part 1
Sutton Learns the Inferno’s Scale

Projected as arrogantly confident, bordering on delusional. Stahlman's emotional state is inferred through the project's audacity and Gold's cautious framing of his quotes. He is likely euphoric at the prospect of his discovery but dismissive of any opposition, viewing skepticism (like Sutton's) as an obstacle to progress. His absence in this scene underscores his detachment from the project's day-to-day risks, leaving others to grapple with the consequences of his vision.

Professor Stahlman is mentioned but physically absent during this event, his presence looming large through Gold's explanations and the project's infrastructure. His influence is felt in the nickname 'Inferno,' the …

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S7E19 · Inferno Part 1
Doctor publicly challenges Stahlman’s authority

Angry, defensive, and increasingly insecure about his control

Professor Stahlman is the embodiment of defensive authority in this moment. His hostility toward Sutton and the Doctor is palpable, framed as a crusade against 'over-caution' and 'experts.' When the …

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S7E19 · Inferno Part 1
Sutton’s arrival fractures the team’s unity

Righteously indignant and seething with barely contained rage, masking a deeper fear of losing control over his life’s work and the potential exposure of his failures.

Professor Stahlman dominates the scene with his belligerent defiance, treating Gold’s introductions and the arrival of Sutton and the Doctor as personal affronts. His body language—unintelligible mutterings, dismissive gestures, and …

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S7E19 · Inferno Part 1
Doctor links murders to drilling disaster

Righteously indignant, convinced of his own infallibility, and increasingly hostile to any challenge to his authority.

Professor Stahlman dominates Central Control with an iron grip, defying Gold’s orders to lower the blast shields and shut off the drill. He dismisses the Red One emergency as his …

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S7E19 · Inferno Part 1
Coolant failure forces fatal choice

Defiant and emotionally charged, masking her fear with stubbornness and loyalty to Stahlman’s authority. Her frustration with Sutton’s interference is palpable, but beneath it lies a deep-seated belief in Stahlman’s infallibility.

Petra, Stahlman’s loyal assistant, reports the jammed coolant controls in the drill head with urgency, dismissing Sutton’s warnings. She prepares to re-enter the drill head despite the extreme danger, her …

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S7E19 · Inferno Part 1
Stahlman defies safety protocols during Red One crisis

Righteously indignant, masking deep anxiety about project failure beneath a veneer of control.

Stahlman stands defiantly in Central Control, smoke swirling around him as he refuses to lower the blast shields or shut down the drill. He barks orders at Petra, dismisses Sutton’s …

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S7E19 · Inferno Part 1
Sutton asserts control over the drill crisis

Frustrated and defensive, masking a growing sense of helplessness as his authority is challenged and his project teeters on disaster.

Stahlman is physically straining at the jammed valve wheel alongside a technician, his face flushed with effort and frustration. His movements are disorganized and frantic, reflecting his stubborn adherence to …

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S7E20 · Inferno Part 2
Coolant stabilizes Petra’s agitation

Tense and increasingly detached, masking his anxiety behind a veneer of cold professionalism. His underlying fear of the project’s unraveling is palpable, though he refuses to acknowledge it openly.

Professor Stahlman receives Sutton’s update with a cold, detached acknowledgment, his response devoid of warmth or gratitude. His body language is rigid, his tone clipped, betraying the tension beneath his …

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S7E20 · Inferno Part 2
Stahlman refuses emergency declaration

Rage masking deep anxiety—his authority is crumbling, and he knows it.

Stahlman dominates this event as the embodiment of institutional arrogance, his frustration boiling over as Petra delivers the news of the unanswered phone. His refusal to declare a Red One …

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S7E20 · Inferno Part 2
Doctor stabilizes reactor with improvised tool

Detached and dismissive, with a sense of superiority that blinds him to the severity of the situation.

Stahlman is spoken to over the phone by the Doctor, who warns him about the contaminated state of Slocum and the scorched wall. Stahlman’s dismissive response—‘we’ve dealt with the matter …

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S7E20 · Inferno Part 2
Stahlman’s Dismissal Ignites Dissent

Coldly dismissive, bordering on contemptuous, with an undercurrent of defensiveness about his leadership being challenged. His emotional state is one of entitlement—he sees himself as above reproach and the project as his sole domain.

Professor Stahlman dominates the room with cold authority, dismissing the emergency as 'contained' and immediately scapegoating the nuclear reactor team for 'boosting the power too high.' His posture is rigid, …

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S7E20 · Inferno Part 2
Stahlman dismisses Petra’s crisis warning

Righteously indignant and dismissive, masking deep-seated hubris and a refusal to acknowledge external threats to his authority or project.

Stahlman stands in the Drill Head, engrossed in his calculations, his posture rigid with confidence as he announces a 12% acceleration in drilling speed. He dismisses Petra’s interruption with a …

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S7E20 · Inferno Part 2
Stahlman dismisses warnings over green liquid

Righteously indignant and dismissive, masking his arrogance with a veneer of scientific authority and urgency.

Professor Stahlman dominates the scene with an air of arrogance and impatience, dismissing Gold’s inability to analyze the green liquid and the Doctor’s speculative warnings. He insists the liquid will …

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S7E20 · Inferno Part 2
Doctor links green liquid to Krakatoa

Defensive and impatient; his frustration with interruptions masks a deeper refusal to acknowledge the project’s dangers.

Stahlman dismisses the Doctor’s involvement and insists the green liquid can be analyzed, despite Gold’s admission that the labs have failed to do so. His arrogance is evident as he …

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S7E20 · Inferno Part 2
Doctor publicly humiliates Stahlman

Coldly furious, with a simmering resentment toward the Doctor’s interference and the Brigadier’s demands. His emotional state is a mix of defensiveness (protecting his authority and project) and barely suppressed rage (at being challenged and insulted). There’s also a hint of panic beneath the surface—his project is unraveling, and he knows it.

Stahlman dominates the office with his dismissive posture, physically turning away from the Brigadier and Gold as he deflects responsibility for the deaths. His voice is cold and authoritative, his …

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S7E20 · Inferno Part 2
Doctor publicly humiliates Stahlman

Defensively arrogant, masking deep insecurity about his competence and authority, which erupts into fury when challenged by the Doctor.

Stahlman begins the event by dismissing the mounting deaths as a 'personnel problem,' refusing any responsibility and deflecting blame to the medical or security sections. He escalates the conflict by …

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S7E20 · Inferno Part 2
Stahlman sabotages the Doctor’s power

Coldly defiant and dismissive, with an undercurrent of frustration at being challenged by the Doctor and Gold.

Stahlman dominates Central Control, his arrogance on full display as he dismisses the Doctor's warnings and the computer's alerts. He orders the acceleration of the drilling project by 12% and …

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S7E20 · Inferno Part 2
Stahlman defies all warnings to accelerate drilling

Arrogantly dismissive of all challenges to his authority, masking any underlying anxiety or doubt with bravado.

Stahlman dominates the scene with an air of unshakable authority, physically handling the volatile jar despite warnings and dismissing its danger with a handkerchief. He shuts down the Brigadier's safety …

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S7E20 · Inferno Part 2
Stahlman’s Defiance and Gold’s Apology

Coldly dismissive of warnings, Stahlman’s emotional state is one of smoldering irritation beneath a facade of absolute control. His impatience with the Doctor and the Brigadier borders on disdain, while his decision to cut power to the TARDIS reveals a petty, vindictive streak. The handkerchief gesture—wiping his hand as if the jar’s danger were trivial—is a microcosm of his broader attitude: treating life-and-death stakes as mere obstacles to his ambition.

Stahlman dominates the scene with a chilling blend of authority and arrogance, physically handling the volatile jar despite the Doctor’s warnings and Petra’s anxiety. His nonchalant use of a handkerchief …

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S7E20 · Inferno Part 2
Stahlman overrides safety protocols

Righteously indignant, bordering on manic certainty—his emotional state is a volatile mix of triumph (overcoming objections) and disdain (for those who question him). The green discoloration suggests an underlying unease, but he suppresses it, channeling his energy into domination.

Stahlman stands in the Drill Head, his posture rigid with authority, as he dismisses Petra’s safety concerns with a wave of his hand—now visibly discolored green, a silent but ominous …

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S7E20 · Inferno Part 2
Covert sabotage and counter-sabotage in Control

Righteously indignant and dismissive of any opposition, with a sense of invincibility fueled by his belief in the project’s necessity.

Stahlman enters Central Control with an air of authority, immediately moving to the main control desk. He opens a panel in the back and removes a small computer circuit—a deliberate …

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S7E20 · Inferno Part 2
Doctor physically confronts Stahlman

Defensive and cornered, his hostility masks a deep-seated fear of exposure. His abrupt exit suggests a man clinging to control as his project—and his reputation—unravels.

Stahlman is caught in the act of sabotaging the Brigadier’s computer, planting a micro-circuit to manipulate data. When confronted by the Doctor, he raises the Brigadier’s swagger stick in a …

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S7E20 · Inferno Part 2
Doctor disarms Stahlman’s sabotage attempt

Defensive and panicked, with a surface layer of arrogance that crumbles under the Doctor’s confrontation. Stahlman’s emotional state is one of humiliation and desperation, as his sabotage is exposed and his authority is challenged. His demand for the Doctor’s expulsion is a last-ditch effort to reassert control, but it lacks conviction, revealing his underlying fear of being held accountable.

Stahlman is caught in the act of removing a micro-circuit from the Brigadier’s computer, a deliberate act of sabotage aimed at concealing the dangers of his drilling project. When the …

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S7E20 · Inferno Part 2
Stahlman destroys evidence under scrutiny

Feigned calm masking deep anxiety about the Doctor’s suspicions, with a smug satisfaction at outmaneuvering him and the Brigadier.

Stahlman dominates the confrontation with calculated arrogance, feigning ignorance when accused of hiding the micro-circuit. He pats his pockets to prove his innocence, exploiting the Brigadier’s deference to his authority. …

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S7E20 · Inferno Part 2
Liz discovers Stahlman’s sabotage and the Doctor’s crisis

Not directly observable, but inferred as ruthlessly determined to maintain control and achieve his goals at any cost.

Stahlman is not physically present in this event but is the subject of the Brigadier’s revelation. His actions—sabotaging the computer and sending Liz on a diversionary errand—are exposed as deliberate …

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S7E20 · Inferno Part 2
Stahlman sabotages the Doctor’s power

Righteously indignant with a undercurrent of panic—Stahlman’s outward confidence masks a deep-seated fear that his project is being undermined, and his reaction is less about logic and more about reasserting dominance. The darkness he creates is both a tactical move and a symbolic assertion of his authority, but it also reflects his own unraveling control.

Stahlman’s body language is a study in controlled fury—his posture rigid, his movements sharp and deliberate as he storms into the control room. The moment the lights dim, his voice …

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S7E21 · Inferno Part 3
Doctor discovers dystopian workshop

Triumpant and unrepentant (off-screen, as inferred from his earlier actions and the consequences of his sabotage).

Professor Stahlman is not physically present in this event but is indirectly referenced as the saboteur who cut off the power, trapping the Doctor in the parallel world. His arrogance …

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S7E21 · Inferno Part 3
Liz discovers Stahlman’s sabotage

Not directly observable, but inferred as calculating and potentially triumphant. His emotional state is likely one of confidence in his actions, possibly tinged with disdain for those he perceives as obstacles (UNIT, the Doctor).

Stahlman is not physically present in this scene, but his actions—cutting the power to the Doctor’s experiment—are the catalyst for the crisis. Liz’s accusation—'Stahlman's cut off the power.'—positions him as …

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S7E21 · Inferno Part 3
Stahlman Defies Power Restoration

Frustrated and resigned, with a simmering anger at Stahlman's arrogance. He is a man used to command, now reduced to pleading, which grates against his military instincts. His concern for the Doctor is palpable, but his hands are tied by Stahlman's control over the facility's power and resources.

The Brigadier stands rigidly in Central Control, his military bearing barely concealing his frustration. He directly confronts Stahlman, his voice firm but increasingly exasperated as Stahlman dismisses his requests. His …

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S7E21 · Inferno Part 3
Stahlman Defies Authority Over Doctor’s Fate

Coldly dismissive, bordering on contempt, with an undercurrent of triumphant arrogance.

Professor Stahlman dominates the scene with icy authority, dismissing the Brigadier’s request to restore power to the Doctor’s hut as ‘ridiculous.’ His posture is rigid, his tone condescending, as he …

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S7E21 · Inferno Part 3
Stahlman conceals his transformation

Feigned calm masking deep anxiety and a growing sense of isolation. His dismissal of Petra’s concern reveals a man clinging to control as his body betrays him, driven by an unshakable fixation on the project’s success.

Stahlman is physically deteriorating, his left palm glowing an unnatural green—a clear sign of the experiment’s toll on him. He hastily conceals the affliction with a white cotton glove, a …

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S7E21 · Inferno Part 3
Doctor Reveals Parallel World Knowledge

Hostile and dominant, with underlying anxiety about the regime’s stability. His emotional state is a mix of righteous indignation (at perceived espionage) and barely suppressed panic (triggered by the Doctor’s knowledge of Sir Keith and the drilling project).

Stewart, now a scarred and authoritarian Brigade Leader, looms over the Doctor with a mix of suspicion and barely contained rage. His one good eye fixes the Doctor with a …

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S7E21 · Inferno Part 3
Stahlman dismisses the Doctor’s warnings

Hostile and dismissive, with a veneer of bureaucratic efficiency masking deeper paranoia. Stahlman 2’s emotional state is one of controlled aggression; he shows no remorse for Gold’s death or concern for the Doctor’s warnings, treating both as obstacles to be removed. His dark glasses symbolize his emotional unavailability, and his immediate condemnation of the Doctor reveals a regime that operates on fear and preemption.

Stahlman 2 dominates Central Control with an air of cold authority, his dark glasses obscuring any hint of empathy as he dismisses the Doctor’s warnings outright. He reveals Sir Keith …

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S7E21 · Inferno Part 3
Stahlman’s Defiance and Mutation Revealed

A volatile cocktail of triumphant obsession and creeping horror—his refusal to halt the drilling is laced with the thrill of being 'near Penetration Zero,' but the sight of his mutating hand triggers a visceral, wordless dread. His emotional state is a pressure cooker: the high of impending 'success' collides with the grotesque reality of what that success is costing him.

Stahlman 2 stands rigid in the Drill Head control room, his back to Williams as she delivers the safety warning. His voice is a blade of authority, sharp and unyielding, …

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S7E21 · Inferno Part 3
Sutton’s Safety Warning Ignored

Aggressively defensive, masking his physical and psychological unraveling. His dismissiveness of the leak reveals his single-minded focus on the project, but his abrupt exit suggests he is unsettled by Sutton’s challenge.

Stahlman 2 dominates Central Control with a mix of arrogance and physical decay, his green, hairy hand a visible symptom of the project’s unnatural toll. He dismisses Sutton’s concerns about …

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S7E21 · Inferno Part 3
Stahlman dismisses critical safety warnings

Coldly indifferent with a veneer of superiority, masking any underlying anxiety about the project’s failure or the consequences of his decisions.

Stahlman 2 stands in Central Control, exuding an air of unshakable authority as he dismisses Sutton’s warnings about the leak in output pipe number two. His posture is rigid, his …

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S7E22 · Inferno Part 4
Doctor Repairs Computer to Prove His Worth

Defensively hostile, masking deep insecurity about the project’s failure. His emotional state is one of barely contained panic, as he realizes his authority is being challenged but refuses to admit fault. There’s a sense of desperation in his insistence on his calculations, revealing his fear of losing control.

Stahlman enters the scene after the Doctor has already repaired the computer, his arrival marked by immediate hostility. He accuses the Doctor of sabotage, dismissing the repair as suspicious. His …

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S7E22 · Inferno Part 4
Doctor Proposes Reverse Vortex Plan

A volatile mix of rage (at the Doctor’s defiance), fear (of the crisis spiraling beyond his control), and humiliation (as his authority is challenged). His approval of the reverse vortex is a surrender, not a choice.

Stahlman storms into Central Control with Petra at his side, his face flushed with anger as he demands to know why the Doctor is still present. He listens to Shaw’s …

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S7E22 · Inferno Part 4
Greg defies Williams over drill safety

Coldly authoritative, with a hint of disdain for Greg’s defiance—her threats are delivered with clinical precision, betraying no personal investment in his fate.

Petra Williams, Stahlman’s loyal enforcer, stands as the embodiment of institutional authority in Central Control. Her demeanor is cold and controlled, her words measured but laced with thinly veiled threats. …

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S7E22 · Inferno Part 4
Doctor exposes Stahlman’s infection

Erratic and defensive, masking his fear of the infection with authoritarian brutality.

Director Stahlman enters the interrogation, questioning progress before the Doctor exposes his bandaged hands. Stahlman evades the Doctor's accusations with a dismissive claim of 'scorched hands,' but his defensiveness betrays …

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S7E22 · Inferno Part 4
Doctor exposes Stahlman’s infection

Erratic and defensive—his facade of authority cracks under the Doctor’s accusations, revealing deep anxiety about his infection and the project’s collapse.

Stahlman enters the office with an air of authority, but his demeanor shifts when the Doctor forces him to remove his glove. The bandages beneath reveal his infection, and his …

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S7E22 · Inferno Part 4
Greg challenges Stahlman’s authority

Indirectly portrayed as arrogant and unyielding—his absence in the scene underscores his detachment from the team’s growing dissent, making him a figure of contempt rather than respect.

Professor Stahlman is not physically present in this exchange, but his authority is the central target of Greg’s rebellion. His absence looms large—his reckless decisions and disregard for safety protocols …

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S7E22 · Inferno Part 4
Gold warns Stahlman of drilling risks

Righteously indignant, bordering on hostile; his frustration with Gold’s interference masks deeper insecurity about the project’s viability.

Stahlman dominates the confrontation with Gold, his body language and tone radiating defensiveness and arrogance. He dismisses Gold’s safety concerns as obstructionism, insisting on his project’s success at any cost. …

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S7E22 · Inferno Part 4
Gold reveals his desperation and foreboding

Not directly observable, but inferred as defiant and dismissive—his earlier outburst suggests he remains unshaken by Gold’s concerns or the Doctor’s warnings, doubling down on his belief in the project’s infallibility.

Stahlman is physically absent from this exchange but casts a long shadow over it. His earlier dismissal of Gold’s warnings and his arrogant defiance of authority frame Gold’s outburst as …

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S7E23 · Inferno Part 5
Control Room Lockdown and Apocalyptic Revelation

Indifferent to human suffering, fully consumed by the primal forces of the drill head. His actions suggest a cold, calculated embrace of destruction.

Stahlman remains trapped inside the drill head after the blast doors seal shut, his true monstrous nature now fully exposed. Earlier, he sabotaged the coolant valve, attacked Greg with an …

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S7E23 · Inferno Part 5
Greg Challenges Stewart Over Evacuation

None (off-screen, implied monstrous transformation)

Stahlman is absent from this event but is referenced as still trapped inside the drill head, having transformed into a monstrous green creature. His earlier sabotage and attack on Greg …

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S7E23 · Inferno Part 5
Stahlman’s Unnatural Rush into the Drill Head

Coldly determined, with a growing sense of primal aggression as his transformation begins.

Stahlman displays eerie indifference to the extreme heat of the drill head, rushing ahead without protective gear. He violently attacks Greg with an iron bar, knocking him unconscious, and begins …

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S7E23 · Inferno Part 5
Stahlman’s Violent Betrayal in Drill Head

Ruthlessly aggressive, reveling in his newfound power and the chaos he is unleashing.

Stahlman, clad in an environment suit, ambushes Greg Sutton with a heavy iron bar, striking him over the back of the head. He then removes his hood and drags Greg …

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S7E23 · Inferno Part 5
Doctor confirms Earth’s dissolution

Triumphant yet feral (embracing his transformation and the chaos it brings)

Stahlman, now fully transformed into a monstrous green creature, drags a technician into the drill head to expose them to the green ooze, ensuring their transformation. Earlier, he sabotages containment …

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S7E23 · Inferno Part 5
Doctor proposes parallel-world escape plan

N/A (mentioned off-screen, but implied as a figure of tragic irony).

Stahlman is referenced indirectly by the Doctor as one of the duplicated figures in the parallel world, serving as a symbolic counterpart to the arrogant, doomed scientist of this reality. …

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S7E23 · Inferno Part 5
Doctor proposes parallel world escape

N/A (Mentioned off-screen, but implied to be a mirror of his current-world counterpart’s arrogance and obsession).

Stahlman is mentioned by the Doctor as one of the duplicated individuals in the parallel world, serving as a point of comparison to underscore the urgency of the mission. Though …

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S7E23 · Inferno Part 5
Stahlman’s monstrous transformation revealed

Malevolent triumph, devoid of remorse or recognition of his former self

Stahlman, now fully transformed into a green-skinned monster, emerges from the drill head and summons the Greens with a guttural command. He moves with predatory grace, his actions deliberate and …

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S7E23 · Inferno Part 5
Stahlman’s corrupted directive triggers disaster

Initially feigned desperation (to manipulate Williams), then malevolent triumph (as his true nature is revealed and he asserts control over the Greens). His transformation is both physical and psychological—a complete surrender to the core’s primal influence.

Stahlman 2, now fully transformed into a grotesque green-skinned monster, emerges from the drill head after the heat shield is raised. He removes his environment suit hood to reveal his …

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S7E23 · Inferno Part 5
The Doctor seals Benton’s fate

Hostile and triumphant, reveling in the transformation of others into his kind, with a predatory focus on expanding the Greens' control over Central Control.

Stahlman 2 emerges from the drill head as a fully transformed green-skinned monster, his environment suit hood concealing his mutation until the blast door opens. He summons the Greens from …

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S7E23 · Inferno Part 5
Gold uncovers Stahlman’s sabotage plot

Triumphed (off-screen), but his absence masks simmering desperation—his orders expose his fear of losing control over the drilling project.

Stahlman is absent but looms over the scene as the unseen architect of Patterson’s sabotage. His influence is felt through Patterson’s confession of orders to detour Gold and stage a …

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S7E23 · Inferno Part 5
Patterson’s sabotage exposed under pressure

Triumpant (indirectly, through the success of his sabotage) but increasingly desperate (as his actions risk unraveling the project and his authority).

Stahlman is indirectly but decisively present in this event through Patterson’s confession, which exposes his orchestration of the sabotage. Though not physically in the car, his influence looms large as …

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S7E24 · Inferno Part 6
Greg and the Doctor Hold the Line

Hostile and predatory, with no capacity for reason or mercy.

The Greens are a relentless, aggressive force, driven back temporarily by Greg’s coolant hose and Stewart’s CO2 extinguisher. They pose an immediate and mortal threat to the team, their predatory …

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S7E24 · Inferno Part 6
Brigadier demands Stahlman’s forced compliance

Defiant and contemptuous—his refusal to comply is not just professional but personal, a rejection of the Brigadier’s perceived incompetence.

Stahlman is absent from the scene but looms large through Benton’s relayed insult: calling the Brigadier a 'pompos military idiot' and refusing to obey his summons. His defiance is implied …

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S7E24 · Inferno Part 6
Stahlman rejects delay over Gold’s disappearance

Righteously indignant with a veneer of cold professionalism, masking deep impatience and disdain for authority figures who challenge his scientific ambitions.

Stahlman storms into the Brigadier's office, visibly agitated and dismissive, his posture rigid with defiance. He mocks the Brigadier's authority, calling his subordinates 'ape-like minions,' and refuses to engage seriously …

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S7E24 · Inferno Part 6
Brigadier demands Penetration Zero delay

Righteously indignant, masking deep insecurity about his scientific legacy and fear of being proven wrong. His arrogance is a shield against perceived interference.

Stahlman storms into the Brigadier’s office, visibly irritated and defiant, having been forcibly dragged from his work. He stands with arms crossed, his posture rigid and dismissive, as he engages …

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S7E24 · Inferno Part 6
Doctor and Greg Escape Central Control

Aggressive and ominous; his actions are driven by primal instinct rather than reason, making him a terrifying and inescapable force.

Green Stahlman, now a mutated predator, stands up and follows the Doctor and Greg as they flee Central Control. His presence is ominous, a silent but relentless threat that looms …

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S7E24 · Inferno Part 6
Stahlman’s attack forces reactor evacuation

Aggressive and hostile, driven by primal instincts with no trace of intellect or reason.

Stahlman bursts aggressively through the inner door, his mutated state heightening the tension and chaos. His presence forces Stewart to open fire, bullets striking without effect, further escalating the reactor …

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S7E24 · Inferno Part 6
Williams Rewires Reactor Under Threat

There is no emotion left in Stahlman—only instinct. His actions are driven by primal rage and the remnants of a once-brilliant mind now reduced to base survival impulses. He is a vessel of the experiment’s failure, a walking warning of what awaits them if they linger.

Stahlman’s participation in this event is a grotesque, sudden interruption of the fragile peace. Initially lying motionless on the floor, he is presumed dead—another casualty of the facility’s collapse. But …

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S7E24 · Inferno Part 6
Williams completes reactor rewiring

Hostile and instinct-driven, with no trace of his former intellect or humanity—pure aggression.

Professor Stahlman, initially lying motionless on the floor, suddenly revives with a snarl, his body now mutated and aggressive. He lunges at Williams, his movements predatory and unhinged, a stark …

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S7E25 · Inferno Part 7
Stahlman overrides safety protocols

Defiant and increasingly unhinged (masking deep insecurity and fear of failure)

Professor Stahlman dominates the scene with his arrogance and dismissive attitude, overriding Petra’s safety concerns and accelerating the drill despite warnings. His dialogue reveals his contempt for caution and his …

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S7E25 · Inferno Part 7
Stahlman’s breakdown escalates drilling crisis

A volatile mix of cold detachment and unhinged obsession, masking deep physical and psychological distress. His surface calm is a thin veneer over a mind consumed by the project and a body failing under the strain.

Stahlman exhibits severe physical and mental deterioration during this event. He stops mid-conversation, staring vacantly, and admits to a headache before dismissing Petra Williams' concerns about his health. His speech …

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S7E25 · Inferno Part 7
Sutton challenges Stahlman’s reckless drilling

A volatile mix of defensive arrogance and unspoken panic, masking a deep-seated fear of failure that has warped into delusional fixation. His surface calm is a thin veneer over a mind fracturing under pressure.

Stahlman enters in a visibly deteriorating state, his physical presence unsteady as he stares blankly into space, dismissing Petra Williams’ concerns with a brittle insistence that he is ‘perfectly all …

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S7E25 · Inferno Part 7
Stahlman’s Collapse and Sutton’s Warning

A volatile mix of manic obsession and deep-seated anxiety, masking a crumbling sense of self. His surface aggression ('Someone else is about to tell me how to run my own project') belies a man teetering on the edge of a psychological collapse, clinging to authority as his only remaining anchor.

Stahlman exhibits a disturbing combination of physical and mental instability. He stops mid-sentence, staring blankly into space, and dismisses Petra’s concerns about his health with a brittle insistence that he …

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S7E25 · Inferno Part 7
Stahlman dismisses Sutton’s safety warning

Hostile and dismissive, with a simmering rage beneath his cold demeanor. His irritation at the alarm and ooze suggests he views the disaster as an inconvenience rather than a failure of his leadership.

Professor Stahlman dominates Central Control with an air of unshakable authority, his demeanor growing increasingly hostile as Greg Sutton challenges his decisions. He dismisses Sutton’s warnings about the faulty flange …

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S7E25 · Inferno Part 7
Sutton’s Warning and Petra’s Confession

Confrontational and dismissive, masking a deep-seated obsession with success and a refusal to acknowledge failure or external authority.

Professor Stahlman dismisses Greg Sutton's warnings about the faulty flange with arrogant disdain, escalating their conflict to a breaking point. He accuses Sutton of deliberate sabotage and delays, insisting on …

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S7E25 · Inferno Part 7
Stahlman’s unraveling and the Doctor’s counterplot

Erratic and unhinged, oscillating between dismissive arrogance and explosive rage. His emotional state is that of a man whose grip on reality—and power—is slipping, and he lashes out to reclaim control.

Professor Stahlman spirals into erratic behavior, chasing technicians back to the drill head and refusing to halt the drilling despite mounting warnings. His dialogue is dismissive and aggressive, revealing a …

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S7E25 · Inferno Part 7
Stahlman’s Authority Unravels

Frantically unhinged, with a mix of rage, desperation, and betrayal as his grip on the operation slips away.

Professor Stahlman is the embodiment of unraveling authority in this event. He dismisses warnings, physically forces technicians back into the drill head, and clings to his vision of success despite …

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S7E25 · Inferno Part 7
Doctor Warns of Parallel Catastrophe

Not directly observable, but implied to be defiant and unyielding (as per Liz’s description: 'Still as difficult as ever').

Professor Stahlman is mentioned indirectly by the Doctor and Liz as the primary obstacle to halting the drilling project. Though physically absent, his influence looms large over the scene, as …

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S7E25 · Inferno Part 7
Gold’s Survival and the Doctor’s Urgent Warning

Not directly observable, but inferred as defiant and unyielding (based on others’ dialogue).

Professor Stahlman is not physically present in this event but is the central figure of contention. His actions—accelerating the drilling project and orchestrating the car crash against Gold—are discussed as …

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S7E25 · Inferno Part 7
Doctor’s Parallel Warning Dismissed

Not directly observable, but inferred as arrogant and dismissive of warnings (based on prior interactions and the Doctor’s frustration).

Professor Stahlman is not physically present in the workshop but is a central figure in the dialogue, referenced indirectly by the Doctor and Liz. His status as 'difficult as ever' …

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S7E25 · Inferno Part 7
Gold’s inquiry fails to stop Stahlman

Coldly dismissive and contemptuous, with a hint of smug satisfaction at his perceived superiority. He shows no remorse or hesitation, even in the face of direct warnings and institutional pressure.

Professor Stahlman stands firm in his defiance, dismissing the Doctor’s warnings as the rantings of a 'demented' maniac. He orders the Doctor’s arrest and mocks Sir Keith Gold’s attempt to …

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S7E25 · Inferno Part 7
Stahlman’s erratic collapse and evacuation

A volatile mix of paranoia and desperation, masking deep physical and psychological agony. His surface aggression ('Do as I say!') belies a man losing control, both of the mission and himself.

Stahlman begins the event with distracted, paranoid behavior, dismissing Petra’s routine update about the robot controls switch. His insistence on raising the temperature—despite the system functioning normally—escalates into physical distress …

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S7E25 · Inferno Part 7
Stahlman’s monstrous transformation

A frenzied, unhinged state bordering on madness, driven by obsession and the loss of control over his project and body. His actions are no longer rational but instinctual, reflecting a complete breakdown of his humanity.

Stahlman, already physically deteriorating, reaches a breaking point as green ooze erupts from the output pipe. In a desperate, obsessive act, he smears the ooze across his face, triggering an …

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S7E25 · Inferno Part 7
Stahlman locks down Central Control

A volatile mix of panic and rage, masking a deep-seated fear of losing control—both of the project and his own identity. His emotional state is now indistinguishable from his physical monstrosity, as if the ooze has consumed not just his body but his psyche.

Stahlman, now fully transformed by the green ooze, smears the substance across his face, triggering a grotesque physical mutation—his skin darkens, thick hair sprouts, and his teeth elongate into fangs. …

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S7E25 · Inferno Part 7
Stahlman’s violent transformation and shutdown failure

Hostile and uncontrollable, consumed by the drilling’s energy and driven by primal aggression.

Professor Stahlman, now physically and psychologically transformed by the drilling’s energy, violently attacks the Doctor. His eyes wild and his movements erratic, he raises a chair to strike the Doctor …

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S7E25 · Inferno Part 7
Stahlman’s violent breakdown and drill shutdown failure

Deranged and enraged, with a complete loss of rational thought. His emotional state is one of unhinged obsession, driven by the drilling’s energy and his refusal to accept failure.

Stahlman, now physically and psychologically transformed by the drilling’s energy, lurches into Central Control, his deranged state manifesting in a violent attack on the Doctor. His actions are erratic and …

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Affiliations

Inferno Project
leader
Deep-Earth Experimental Drilling Operations

Stahlman is the sole director of the Inferno project, with individual decision-making authority.

The Greens
leader
Core-Spawned Monstrous Assault and Transformation

After his transformation, Stahlman leads the Greens, directing their actions in Central Control.

Inferno Project Team
member
Deep-Earth Drilling Operations and On-Site Crisis Response

Stahlman appears to be the head of both the overarching Inferno Project and by extension, the Nuclear Reactor team

Across the Seasons

How this character reads at season scale

Season 7 · anchor

Professor Stahlman heads the Wenley Moor deep-drilling project at the East Coast Research Centre, directing nuclear-powered operations to harness limitless crustal energy. He commands absolute authority over the project, overseeing operations with Petra Williams as his loyal assistant. Stahlman's arrogance and ruthless determination drive him to accelerate drilling despite warnings from safety advocates, including Sir Keith Gold, Greg Sutton, the Doctor, and UNIT's Brigadier Lethbridge-Stewart. His dismissive attitude toward risk assessment and concealment of personal vulnerabilities (e.g., exposure to the green ooze) underscore his obsession with achieving a scientific breakthrough at any cost. Stahlman overrides safety objections, orchestrates sabotage to protect his authority, and prioritizes the project's success over personal safety or ethical concerns.