K9 Mark I

K9 performs medical diagnostics on the Doctor, printing encephalograph and noetic viral readouts that surprise and unsettle Marius. The unit provides technical exposition while interfacing directly with the Doctor’s alien …

K9 aggressively denies entry to the Isolation Ward, issuing repeated warnings and alerting personnel to the contagion risk posed by Leela’s unchecked presence. It functions as a sentinel enforcing protocol.

K9 actively denies Leela entry to the Isolation Ward using rigid security protocols, escalating to verbal warnings before Marius overrides and reconfigures his directive to treat Leela as a friendly …

K9 stands guard within the Isolation Ward, configured as a rigid, procedural security device enforcing absolute containment protocols. Upon Leela’s intrusion, it issues automated warnings, rejecting all appeals to identity …

K9 stands guard at the Isolation Ward Door, responding to Leela’s intrusion with repeated warnings. He offers no quarter until Marius overrides his directives, forcing recognition of Leela as an …

Immediately activates strict lockdown protocols upon detecting Leela’s unauthorized entry, voice cycling rapidly through repeated warnings and demands for retreat. Stands ready to enforce isolation indefinitely, prioritizing contagion risk over …

K9 transitions from negative diagnosis on Leela to active surgical monitoring. It receives direct orders to track the Doctor’s brain activity and warn of emergent consciousness during the high-stakes operation.

Receives explicit orders from Marius to guard the Doctor during evacuations. Rigorously complies with procedural enforcement, analyzing the Doctor’s condition and responding to direct inquiries with procedural inquiry—its protocols momentarily …

K9’s mechanical voice is steady but wary, projecting calm procedural caution. His optical scanner sweeps the Doctor’s vitals while his chassis hums with the strain of overridden safety protocols. He …

Though physically absent, K9 is implicitly invoked by Leela as a destination and safe haven. His role is activated through her distress, making his presence a stabilizing force referenced but …

K9 stands ready at Leela’s side, speaking in concise, clipped bursts while his green vision scanners pivot to confirm the vanished figure’s nature. His responses shift from terse confirmation to …

K9 stands beside Leela in the isolation ward, his mechanical systems processing sensory input with clinical precision. His affirmation of Leela's identification of the second Doctor is immediate and decisive, …

K9 follows Leela’s directives with mechanical obedience, repurposing itself from medical sentry to demolition expert. It prioritizes structural elimination above all, ensuring no blind spots remain for enemies.

K9 receives orders from Marius and immediately shifts allegiance to Leela’s plan. He acknowledges her request and commits to destroying the service shaft while meeting her in Corridor X3. His …

K9 acts as Leela’s tactical partner, leaving the Isolation Ward to assist with defensive preparations. His mechanical precision and adaptation to authorized commands position him as a critical asset in …

K9 stands as Leela’s tactical anchor, overseeing the destruction of the service shaft and the fortification of a barrier from the corridor’s debris. His automated response to Leela’s gratitude reveals …

K9 dispatches the breaching target with mechanical precision but is immediately infiltrated by the Nucleus virus during the target’s death throes. Despite its procedural programming, the robot transmits a confirmation …

K9 mechanically complies with Lowe's order, deploying its muzzle-mounted photon gun to fire on Leela without hesitation. After executing the command, the robot immediately enters self-repair mode, retreating to a …

K9 gently prods Leela to regain her attention, explaining his attack was due to temporary contamination and subsequent regeneration. He then argues for restraint, prioritizing the Doctor’s mission against the …

Having regenerated after viral corruption, K9 politely addresses Leela and explains his temporary malfunction before reverting to rigid procedural obedience. When the nurse delivers critical intel, he immediately counters with …

K9 stands with scanner sensors elevated, speaking with measured mechanical precision. Having regenerated after earlier corruption, it dutifully reports surveillance necessity and argues against interference despite its own system repairs …

K9 provides critical intelligence to Leela about approaching hostiles bearing down on the Doctor’s location, enabling her to adjust the escape route dynamically and avoid immediate interception.

K9 provides Leela with whispered approval from off-screen, serving as her covert backup and moral compass during the infiltration. His presence reinforces her resolve to execute the risky rescue and …

K9’s mechanical sensors detect the advancing Nucleus loyalists and trigger a warning to Leela moments before Lowe arrives. Its diagnostic bark arrives as dated data but still arrests momentum, granting …

Hurtles into the corridor just as Marius and Leela reach the airlock, ignoring the Nurse disguise’s authority cues. It attacks Marius without hesitation, disabling him through a combination of mechanical …

K9 materializes beside the console, his barrel-mounted photon gun extending with a quiet mechanical whine. His photoreceptors lock onto the Doctor’s commands without hesitation, processing the non-lethal parameters before his …

K9 stands at attention, responding to the Doctor’s command with mechanical precision. Though infected by the Nucleus virus, its loyalty to the Doctor overrides the alien control, and it departs …

K9 initially appears to comply with Marius’ corrupted command before asserting its independent function, discharging a precise disabling blast to neutralize its target.

K9 unexpectedly disobeys Marius's command, firing a stun blast that neutralizes him. The Doctor's commendation confirms K9's pivotal role in the escape. K9's actions reveal its agency despite prior programming …

K9 acts without hesitation, immediately discharging a focused energy pulse from its muzzle-mounted photon gun at Marius upon receiving an invalid command override. The shot is precise and irreversible, dropping …

K9 confirms the lethal capacity of the C531 antibody strain, providing the necessary technical validation to proceed. Its presence serves as a clinical anchor amid the escalating debate, grounding the …

Observant and precise, K9 transmits confirmation of strain C-531’s lethal capacity with cold, measured certainty. His neutral tone underscores the objectivity of the observation, forming the technical keystone of the …

K9, depleted from prior struggles, is unable to move but assists by allowing the Doctor to attach a lead and drag him away. Though out of reserves, his loyalty persists …

K9 acts as a decoy, drawing Lowe’s gunfire and a physical assault, then executes the precise order to disable Lowe just before the infected commander can hurl the Doctor into …

K9 remains stationed by the desk alongside Leela, his medical subroutines fully engaged in stabilizing the TARDIS temporal systems. His optical sensors track the Doctor's swift approach and departure into …

Immediately after being pulled inside, K9 stands mechanically poised, receiving acknowledgment for executing the sabotage plan that triggered the Nucleus’s fiery demise. Its sensors likely confirm the mission’s success, serving …

K9 activates inside the TARDIS, acknowledging the Doctor’s command to blow up the Nucleus. Pulled inside by Leela earlier, the robot serves as a physical token of their shared victory …

K9 activates his locomotion systems and moves with purpose towards the TARDIS, entering autonomously without command. His sensors glow faintly in acknowledgment, his photon gun retracts in a quiet sign …

K9 acknowledges gratitude from Leela and independently enters the TARDIS, demonstrating autonomy and confirming his decision to join their crew. His actions speak louder than any dialogue, finalizing his transition …

K9 lies open and inoperative on the TARDIS floor, corrosion spreading across its circuits as wires spill around it. Though silent and inactive, its presence as a disabled but once-reliable …

K9 lies with its circuits exposed and wires spilled across the floor, corrosion pulsing in erratic bursts as the Doctor attempts to integrate its systems with the TARDIS. Its malfunctioning …

Lying open on the TARDIS floor, K9’s damaged circuits sputter greenish sparks as the Doctor’s sonic screwdriver sends intermittent bursts of light across the chassis. Its silencing systems fail, leaving …

K9 is referenced as the Doctor’s repair project, his head bobbing in response to the Doctor’s affectionate address. Though silent, his presence underscores the Doctor’s need for operational readiness amidst …

K9 remains motionless, his head slightly raised in response to being addressed as 'him' by the Doctor. His presence serves as a physical bridge between the Doctor’s levity and Leela’s …

K9 lies partially dismantled on the TARDIS floor, his head detached and moving on a servo as the Doctor snaps the casing shut. His squeaking vocalizations respond to the Doctor’s …

K9 mechanically directs the chess moves with absolute certainty, issuing commands and even attempting to interject irrelevant planetary data after landing. Its rigid adherence to protocols contrasts sharply with the …

K9 acts as an active participant in the chess match, repeatedly announcing moves and calculating outcomes with mechanical precision. He strives to communicate pertinent information about the game and the …

Acts as the Doctor's relentless adversary in the chess match while simultaneously providing information about Pluto's impossible nature. His rigid logic and persistent interruptions escalate the Doctor's irritation until he …

K9's truncated metal body emerges from the TARDIS with mechanical precision, his optical sensors glowing as he surveys the cavernous Block 40 with calculated calm. His vocalizer emits the purposeful …

K9’s presence is detected on the tracker system, displayed as a pulsing indicator in Gatherer Hade’s office. His signal is treated as a disruption to the Company’s surveillance, though he …

K9 responds to an implied command, its voice flat and calculated as it issues the directive to descend to level forty-two. The cybernetic canine remains task-oriented, its truncated metal body …

K9 appears on the surveillance monitor as a blinking tracking beacon within the service subways. His presence is unintentionally betrayed by the power cable connected to the floor grill, transforming …

K9 remains stationed in the subway, awaiting orders with mechanical stillness. The Doctor’s call draws an immediate vocal response and a segmented turn toward him, the cybernetic dog’s presence contrasted …

K9 stands calmly amid the subway’s clamor, poised despite defying direct orders. He asserts his loyalty with clipped affirmatives and confirms his systems are fully operational, demonstrating disciplined responsiveness to …

K9 remains calm and analytical, fulfilling his role as the Doctor’s auxiliary. He detects the chemical signature of the inhibitor even though it is invisible and odorless, using his sensor …

K9 autonomously advances toward the guard with programmed precision once ordered. His stun drone executes a silent, targeted strike that incapacitates the sentry before any vocal warning can be sounded. …

K9 stands ready beside Leela, his sensor arrays actively scanning the doors and immediate surroundings. He responds to Leela's queries with clipped, definitive data, his mechanical voice underscoring the critical …

K9 accompanies Leela and Cordo into the chamber, obeying her first command to guard the door and reporting thereafter that the corridor is clear. His silence and clipped affirmatives underscore …

K9 remains on guard at the door while scanning the corridor's safety. His clipped confirmation to Leela that the path is clear provides the immediate catalyst for their decision-making process, …

K9 eliminates two Company guards with precise laser fire upon Leela's command, then positions himself on the rear of the rebel vehicle to provide support during the breakout attempt. He …

K9 remains with the vehicle despite Leela’s injury, perched alertly on the back. He makes no attempt to aid Leela directly but observes the unfolding moral fracture with mechanical detachment. …

K9 responds instantly to Leela's orders, eliminating two guards with precise shots before repositioning to assist in the vehicle takeover. Positioned on the vehicle's rear, he provides tactical support while …

K9 obeys Leela’s orders to remain hidden and motionless to avoid detection before firing with precision to eliminate two Company guards. He then assists in removing weapons and is later …

K9 critiques the Doctor's duplication of effort in finalizing the static loop, delivering his line with dry, clipped precision. His presence reinforces the Doctor's reliance on his technical feedback, and …

K9 remains motionless, his sensor arrays scanning the subway tunnel with mechanical precision while reporting environmental data in clipped affirmatives. His report is concise and efficient, devoid of unnecessary elaboration, …

K9 enters the planning with a concise tactical proposal after observing the Doctor’s dilemma. His suggestion to use his pressure-resistant frame to navigate the lethal vent system and blast open …

K9 answers the crisis with a concise tactical proposal, spotlighting his frame’s pressure resistance as the sole feasible route. His insistence that he can attempt to blast open the valve …

K9 interrupts the desperate planning with a calculated suggestion that immediately redirects the group's focus. His offer to risk the lethal vent exemplifies his absolute loyalty and unique capabilities in …

Emerges from the ventilation shaft after disabling the lethal pressure valve, enduring the scalding steam to complete his mission. His timely success triggers immediate operational shifts among the rebels, proving …

K9 emerges from the vent after disabling the pressure valve, provides minimal but efficient assistance, and offers a clipped farewell as the Doctor enters the lethal shaft, embodying operational readiness.

K9 emerges from the lethal vent with calm efficiency, confirming the condensation valve has been successfully disabled. He offers terse praise to the Doctor, demonstrating unshakable operational reliability despite the …

K9 breaches the vent’s grated barrier, providing the Doctor with a passage into the lethal shaft. He emerges to report success and accompanies the Doctor into the vent system, offering …

K9 provides tactical backup by appearing on command and receiving an explicit order to support the allies. His presence embodies precise execution and loyal reinforcement in the Doctor’s strategy.

K9 materializes at the Doctor's command, immediately accepting tactical assignment to defend the corridors alongside Bisham and Cordo. His cybernetic presence adds both mechanical precision to the defense and a …

K9 is assigned by Synge to guard the Correction Centre Corridor as a defensive contingency. Though not physically present on stage, his presence is invoked strategically to monitor a key …

K9 remains present but silent during this exchange, positioned near the Doctor. His presence underscores the technological and tactical support he provides, though his inactivity in this moment highlights his …

K9 provides an immediate affirmative to the Doctor’s question about his actions, ending the exchange with clipped certainty. He remains unperturbed by the chaos, reinforcing his role as the Doctor’s …

K9 remains physically unaffected by the TARDIS's lurch due to his stationary posture, but his synthetic equanimity is acknowledged by the Doctor's apology. His presence reinforces the fragile balance between …

K9 interrupts with concise, machine-like precision, capturing both the Doctor's and Leela's attention with urgent data about the ion drive signal despite repeated dismissals. His clipped affirmative reports and eventual …

K9 detects the ion drive signal and provides precise navigation data, correcting the Doctor’s assumptions with technical accuracy. His clipped affirmatives carry urgency as he highlights the presence of a …

Reports ion drive detections with clipped, factual affirmatives, oblivious to the Doctor's urging to stop talking. Unfazed by crisis, it delivers navigation coordinates blindly, accelerating the crew's rush toward the …

K9 immediately responds to the Doctor's request, analyzing the artifact's isotope decay rate with measured precision. His clipped affirmative provides the definitive age of the artifact, grounding the scene's historical …

K9’s internal systems collapse into repetitive failure reports, his clipped affirmatives amplifying the crisis’s severity. His malfunction underscores the event’s root danger—systematic breakdown in the face of cosmic threat.

K9 arrives at a critical juncture, interfaced with a cleaved crystal and bulldog clips to stabilize the navigation via Orfe’s console wheels. He overrides propulsion control, directing the ship away …

Integrated into the Argo’s guidance system via crystalline array and bulldog clips. Provides navigation solutions that guide the ship away from the nebula, demonstrating the Doctor’s intervention success.

K9 clanks aboard the stricken Argo, his metallic frame cutting through tension as he overcomes access points labeled GC3, IC7, YU1, ZY9. He integrates rapidly with the ship’s failing guidance …

K9 clatters onto the flight deck via the access points (GC3, IC7, YU1, ZY9), his crystalline guidance array clamped into his neural port. His outer casing flickers with indigo pulses …

Herrick expresses skepticism about the TARDIS and warns about Time Lord trickery, his bitterness flickering beneath gruff compliance.

K9 delivers the initial status report about Tala's regeneration condition, establishing the crisis context before the Doctor's provocation begins. He remains stationed and responsive despite the growing chaos, providing technical …

K9 provides sensor analysis confirming the signal boost’s identification of the P7E coordinates. His data supports Orfe’s rapid ident, but his presence and insights are overshadowed as human tensions erupt. …

K9 functions as the ship’s technical lifeline and prognosticator, delivering distressed countdowns that objectively frame the crew’s waning seconds while physically disconnected. His clipped machine vocals underscore the inevitability of …

K9 provides the crew with accurate, machine-like precision, detailing Mach speed and counting down to impact with clinical detachment. His contributions focus the crew's attention on the immediacy of their …

K9’s compact cybernetic form stands rigid on the command deck, his sensor array activated as he reports the Argo’s catastrophic plunge with clinical precision. His voice cuts through the silence, …

Though physically absent, K9 is the referenced focus of the exchange; his recharging in planetary radiation forms the hidden precipice beneath their conversation, emphasizing his vital but expendable role.

K9 operates as the Doctor’s silent tactical sensor and executor, receiving covert orders and mapping tunnel vulnerabilities. His clipped vocal confirmation and flawless execution of remote retrieval demonstrate precision unaffected …

K9 provides the Doctors with a detailed tunnel map and is immediately dispatched to locate and recover Jackson. His operational readiness is confirmed by a single affirmative, and he fulfills …

K9’s segmented body bristles with active sensors, his red optical lens locking onto the climbing Minyans with unwavering focus. His metallic voice cracks through the stale tunnel air, delivering a …

K9 leads the group into the cave, resting with the Trogs but remaining alert. His presence is functional, serving as a scout and source of technological knowledge, though this scene …

K9 obeys the Doctor’s command without hesitation, pivoting toward the Minyan ancestral ship to perform critical systems verification. His clipped confirmation and mechanical precision underscore the urgency of the moment.

K9 functions as the crew’s unblinking monitor and Jackson’s reluctant conscience, his clipped affirmatives exposing Jackson’s flawed assumptions. His report halts the launch sequence, thrusting the command deck into reactive …

K9 fulfills his diagnostic role with stoic precision, reporting fuel absorption status and crew personnel completeness with cold efficiency. His interruption exposes the crew’s malfunctioning chain of command, rendering his …

K9’s segmented metal form is partially obscured by dust and debris, his signal beam pulsating red as it slices through the rockfall. His voice remains calm and clipped, reflecting his …

K9 stands motionless on the command deck, his sensors analyzing the cylinders with clinical precision. Though physically tethered, his diagnostic output triggers system-wide panic as the severity of the threat …

K9 responds to the Doctor's query with abrupt, clipped certainty, his mechanical voice slicing through the warm narrative fog with a single, uncompromising word that halts the conversation and redirects …

K9 responds to the Doctor’s question with a clipped negative, providing a literal counterpoint to the Doctor’s mythic musings. His presence underscores the TARDIS’s technological grounding amidst the narrative’s poetic …

K9 begins by deflecting Leela’s questions with robotic literalness, asserting his lack of emotional programming in response to her emotional appeals. When she defies his warnings and touches the controls, …

K9 receives and executes the Doctor’s command without emotion, retracting into robotic compliance. His laser tube extends as a physical manifestation of the Doctor’s authority, instantly curtailing Leela’s ability to …

Stationary beside the console, his sensor lens whirring as he processes the Doctor’s wordplay without deviation, forcing a literal confrontation with the metaphor of cheek.

K-9 serves as the Doctor’s unblinking intermediary, relaying Leela’s location with clinical precision. His report disrupts the Doctor’s momentum, forcing a pause in scheming. Though passive in presence, his mechanical …

K9 enters the console room with abrupt, purposeful motion, his lens fixed intently on the TARDIS. His clipped vocal demands and biting assessment reveal his operational rigidity strained by what …

K9 stands motionless beside the motionless Doctor, his red sucker probe extended and pressed against the Doctor’s skull to monitor cerebral stability. He responds with clipped, machine-precise analysis, repeatedly refining …

K9 advances upon the Doctor’s order but halts obediently when stopped by the Doctor’s foot. He responds to the Doctor’s requests with robotic precision, his movements and dialogue reflecting unquestioning …

K9 emerges from the TARDIS as the guard unlocks the door. Upon detecting the lethal nature of the keys, K9 instantly activates and shoots the guard with clinical precision, preventing …

K9 acts with programmed precision, neutralizing an enforcement guard with a targeted shot before advancing to the transduction barrier control panels. He methodically disables the critical systems using disciplined, calculated …

K9 moves with mechanical precision, firing his weapon at a nearby guard to eliminate an obstacle before advancing on the transduction barrier’s control panels. He bypasses biometric security using blunt …

K9 is mentioned as being on his way, serving as a distant but predictable presence aligned with the Doctor’s strategy. His absence underscores the Doctor’s reliance on asynchronous support, where …

Summoned briefly by the Doctor mid-scene, K9’s presence is signaled as the Time Lords depart. Though not physically present during the Leader’s praise and interrogation, K9’s role as a tactical …

K9 is engaged in preemptive setup for the TARDIS shield chamber, returning to the console room to access the control panel. His absence from the immediate dialogue highlights his role …

Exits the office swiftly to execute a critical technical maneuver, his departure signaling the shift from political gambit to operational secrecy.

K9 remains in the background, engaged with the TARDIS console, demonstrating operational detachment from the political confrontation. His presence is functional—part of the Doctor’s technological support system—though he performs no …

K9 remains in the TARDIS console room, performing technical repairs or diagnostics on the console. His presence is peripheral but essential, ensuring the Doctor’s escape route remains functional while the …

K9 remains docked to the TARDIS console, his segmented frame emitting intermittent sparks from scorched casing segments, his optical lens pulsing weakly in response to the Doctor’s voice. The mechanical …

K9 complies with the Doctor’s order, deploying his stun module to neutralize Andred with mechanical efficiency. His single-line confirmation of reconnecting communications follows without emotional inflection, highlighting his role as …

Physically connected to the Matrix via the Doctor's intervention, K9 operates as a thought-shield by occupying the Doctor's place in the system's interface. The Doctor references him directly while explaining …

K9, physically connected to the Matrix, serves as the Doctor's silent but critical proxy within the Gallifreyan information network. His presence is acknowledged briefly but pivotal, as the Doctor highlights …

K9 stands immobile and silent inside the Doctor’s chambers as the Doctor physically connects him to the Matrix via a console port, turning the robotic dog’s frame into a conduit …

K-9 detaches from the TARDIS console on command, acting as a sensor array and diagnostic tool. He provides precise data on an obstructed channel but is eventually repurposed into operational …

K9 detaches from the TARDIS console at the Doctor’s command, scanning external channels to deliver precise technical data. His reports are methodical and unambiguous, providing the factual foundation for the …

K9 detaches from the TARDIS console at the Doctor’s command and reports the detection of an outer spatial channel with heavy radiolactic interference, aiding the Doctor’s tactical exposition. The Doctor …

K9 stands motionless as a tactical node, his armored body angled toward Andred. Unblinking sensors track input calculations while his vocal synthesizer delivers precise trigonometric responses in mechanical cadence.

K9's sensors swing into alert mode, his voice crackling with mechanical urgency as he orders immediate action. He stands functionally still, his physical posture rigid, but his systems are visibly …

Accompanying Andred in the corridor, K9 provides silent yet critical support through mechanical obedience and combat capability. His presence ensures the pair’s covert movement remains unchallenged, embodying the Doctor’s trust …

K9 accompanies Andred in the corridor, meeting a guard before observing his Commander's lethal action. His presence underscores the Doctor's reliance on mechanical loyalty over organic allies in the midst …

K9 meets Andred and a guard in a narrower corridor, observing the confrontation without emotional response. His presence provides tactical support during the violent encounter, underscoring the Doctor’s reliance on …

K9 accompanies Andred as a silent, armored companion. Positioned beside him in the corridor, K9’s sensors likely detected the guard’s presence before Andred acted. K9 does not intervene or speak, …

K9 voices caution to Commander Andred, insisting on waiting for the Doctor's return before disabling equipment. His stance reflects programmed loyalty to the Doctor's delayed strategy and mechanical adherence to …

K9 responds with mechanical precision to the Doctor’s command, nodding and extending his red sucker probe three times—a clear signal of combat readiness. His movements are deliberate and unemotional, embodying …

K9’s segmented chassis hums with mechanical precision as he relays the critical vector and executes the Doctor’s command without hesitation. His sensors lock onto the transmission stream, and his systems …

Operating silently in the shadows, K9’s Matrix manipulation disrupts the Vardans’ systems, rendering their physical forms inert. His presence is felt only through the sudden absence of the invaders, a …

Reports the absence of Vardan signals on Gallifrey via a flat, definitive tone while the Doctor physically removes the regalia from its casing. Its sensors fulfill their role as the …

K9 remains in the background, his systems inactive as the Doctor strips his ceremonial adornments. Though not an active participant in the verbal exchange, his silent presence underscores the transactional …

K9 accompanies Leela and the group out of the Chancellory, his movements precise and unobstructed, embodying mechanical obedience to the Doctor’s orders.

K9 moves backwards in a controlled tactical retreat, blaster armed to fire at pursuing Sontarans while covering the group's rearward movement.

Accompanies Andred to Control Booth Seven after receiving the order, functioning as the Doctor's remote hands supporting quasitronic repairs without verbal contribution.

K9 is dispatched into the depths of the TARDIS alongside Andred, his presence serving as a shield against unseen threats. His silent obedience underscores the Doctor’s reliance on mechanical precision, …

K9 is immobilized in place as the diagnostic equipment analyzes his systems through the circlet interface, serving as a passive evaluation subject during Andred's assessment.

K9 confirms the TARDIS’s inertia with clinical detachment, reinforcing the Doctor’s awareness that mechanical stillness belies the chaos unfolding on upper levels. His statement about the ship’s state serves as …

K9 remains in the workshop, functioning as a sentinel of operational readiness. His single line—a report of the iridium alloy rod—anchors the team’s confidence in the counterattack. His presence is …

K9 waits with mechanical precision as the Doctor’s hypnotic commands conclude, his chassis humming softly as he prepares to receive the Great Key from Rodan. He verifies the key’s specifications …

K9 stands immobile but vocal, his voice calm and unyielding. He abandons his usual post beside the Doctor to declare his fidelity to Leela. The TARDIS door seals on him …

K9 stands motionless beside Leela, his head bowed in quiet mechanical mourning after being asked about loneliness. His customary precision yields briefly to muted mechanical neutrality, reflecting the depth of …