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Cyberman (Malfunctioning Anomaly)

unpredictable erratic resilient malfunctioning uncontrolled hostile disoriented
Demented Cyberman operates as a frontline soldier in the Cybermen invasion force but suffers a control signal failure that triggers wild, unpredictable behavior. It ignores humans nearby, wails loudly, and charges without direction, diverging from the emotionless obedience of standard units. This malfunction highlights reliance on centralized command and exposes tactical weaknesses during underground operations in human cities.
3 appearances
Cybermen invasion combat
Also known as: demented Cyberman, Cyberman (erratic/demented), erratic Cyberman

Cyberman (Malfunctioning …'s Journey

A timeline through the narrative

3 moments
S6E16 · The Invasion Part 6
Cybermen Ambush in the Sewers

None (mechanical, but behavior suggests internal dysfunction).

The demented Cyberman ignores Jamie, Zoe, and Isobel, wailing erratically before being targeted by Turner and Walters’ grenade assault. Its malfunctioning state suggests a critical flaw in the Cybermen’s control …

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S6E16 · The Invasion Part 6
Turner’s Urgent Escape Order Amid Cyberman Threat

Erratic and hostile, its malfunctioning state making it a wild card in the sewer battle.

The demented Cyberman, though not directly interacting with the group in this moment, casts a long shadow over the scene. Its erratic wailing and survival of the grenade attacks imply …

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S6E16 · The Invasion Part 6
UNIT’s Grenade Ambush Fails Against Cybermen

None (emotionless), but its behavior is erratic due to mechanical failure, creating a chaotic element in the sewers. It does not exhibit fear, anger, or any human emotion—only glitches in its programming.

The demented Cyberman acts erratically, wailing and ignoring Jamie, Zoe, and Isobel as it stumbles through the sewers. Its malfunctioning state creates a critical distraction, allowing Turner to order a …

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Affiliation

Cybermen
member
Extraterrestrial Pacification and Covert Planetary Annihilation Operations

The Cyberman is stated to be a unit, and the Cybermen are described as an invasion force. Furthermore, there are shared events where this Cyberman is present, indicating membership.

Across the Seasons

How this character reads at season scale

Season 6 · asteroid

A damaged Cyberman unit with erratic behavior, marked by wailing cries and unpredictable targeting. Operates as a disruptive anomaly within the invasion force, revealing flaws in Cybermen uniformity and serving as a plot device to create tension.