Doctor Who
Character
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Kroton Collective

coldly logical ruthlessly pragmatic authoritatively hierarchical indifferent to organics technically precise
A collective entity comprising multiple crystalline extraterrestrials who crashed on Dulkis. Operates as a hierarchical unit with commanders and subordinates (e.g., Kroton 2), prioritizing machine function and conquest over individual lives. Described in plural terms (e.g., 'they solidify', 'they dismiss organics').
28 appearances
Dynatrope Operations and Gond Subjugation
Also known as: KROTON, Kroton

Kroton Collective's Journey

A timeline through the narrative

28 moments
S6E20 · The Krotons Part 2
Zoe’s Unwitting Kroton Test

Not directly observable, but inferred as calculating and controlling, with a focus on extracting superior minds for their own purposes.

The Krotons are indirectly represented through the learning console’s reaction to Zoe’s performance. The machine’s approval of her score signals their predatory interest in her intellect, foreshadowing her selection as …

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S6E20 · The Krotons Part 2
Vana’s Trauma Reveals Kroton Weapon

Not directly observable, but inferred as coldly calculating and unfeeling, viewing the Gonds as mere resources for their survival.

The Krotons are not physically present but are the indirect, malevolent force behind Vana’s trauma. Their mind-altering technology—represented by the 'burning ball' and 'flashing lights'—has left Vana in a shattered …

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S6E20 · The Krotons Part 2
Zoe selected as Kroton companion

None (alien and amoral)—their actions are driven by survival instinct, not empathy or malice.

The Krotons are implied through the message pad and test machine, their presence looming over the scene like an unseen predator. Their selection of Zoe and the Doctor is cold, …

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S6E20 · The Krotons Part 2
Doctor defies the test to join Zoe

Cold and unyielding, their emotional state is one of detached efficiency. They view the Doctor and Zoe as resources to be exploited, their selection driven by a predatory logic that prioritizes the extraction of mental energy over individual lives. There is no empathy, only the clinical execution of their plan to solidify their crystalline forms.

The Krotons, though not physically present, exert their influence through the message pad, the gong, and the crystalline doorway. Their selection of Zoe—and later the Doctor—as companions is communicated with …

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S6E20 · The Krotons Part 2
Doctor and Zoe forced into Kroton domain

Detached and dominant, with a sense of inevitable control over the situation

The Krotons, though not physically present, exert their influence through Selris’ delivery of the message pad and the ominous gong that seals the Doctor and Zoe’s fate. Their selection of …

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S6E20 · The Krotons Part 2
Doctor realizes Kroton transformation threat

Not applicable (indirect presence).

The Krotons are indirectly present through their operations in the Dynatrope, using the Doctor and Zoe's mental energy to accelerate the thermal switch and solidification process in the vats. Their …

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S6E20 · The Krotons Part 2
Krotons detect Gond conditioning failure

Defensive and unsettled, masking deep anxiety with a facade of unshakable authority. The Kroton’s emotional state is a mix of confusion and denial, as the unthinkable—failure of their conditioning—threatens their sense of control.

The Kroton stands rigid in the Dynatrope Control Room, its crystalline form reflecting the cold, clinical lighting as it processes the alarming deviation from protocol. Its voice is sharp with …

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S6E20 · The Krotons Part 2
Krotons identify Jamie as high-value target

N/A (Selris is not physically present or active in this event; his image is used passively by the Krotons).

Selris is referenced indirectly by the Krotons when an image of him is displayed on a monitor. The Krotons use Selris as a point of comparison to Jamie, concluding that …

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S6E21 · The Krotons Part 3
Jamie’s interrogation and Kroton’s vision control order

Authoritative, dismissive, and strategic, with no apparent empathy or emotional investment in the lives of their captives.

The Kroton collective is represented in this event by a commander and Kroton 2, who operate with cold efficiency to interrogate Jamie and escalate their oppressive measures. The commander dismisses …

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S6E21 · The Krotons Part 3
Kroton Commander activates vision control

Detached and focused, driven by institutional logic rather than empathy or individual concern.

The Kroton Commander, embodying the collective’s cold utilitarianism, abruptly shifts focus from interrogating Jamie to addressing the 'vision control' requirement. Their dismissal of Jamie as irrelevant underscores their hierarchical efficiency …

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S6E21 · The Krotons Part 3
Jamie’s Dehumanization by the Kroton

Detached and procedural, operating purely on logic and protocol. There is no malice—only the cold efficiency of an organism following its programmed directives. Jamie’s humanity is irrelevant; his value is measured solely by his utility to the Krotons’ machine.

The Kroton, representing the collective’s authority, enforces rigid protocol with clinical detachment. It interprets Jamie’s minor movement as defiance, responding with immediate hostility and a death sentence ('dispersal'). Its dialogue …

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S6E21 · The Krotons Part 3
Selris and Thara clash over Eelek’s war

Collectively indifferent; the Krotons’ actions are driven by cold logic and a complete lack of empathy for the Gonds or their suffering.

The Kroton Collective is represented through the actions of the individual Kroton interrogating Jamie. Their collective will is embodied in the machine’s operation, the dismissal of Gond lives, and the …

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S6E21 · The Krotons Part 3
Jamie exposes Krotons' predatory motive

Indifferent, treating organic life as expendable

The Kroton interrogates Jamie in the Dynatrope control room, responding to his questions with cold, procedural logic. It admits the Dynatrope requires 'high brains' for power, justifying the mind-draining of …

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S6E21 · The Krotons Part 3
Jamie Steals Kroton Canister During Interrogation

Collective indifference—no emotional response to Jamie’s plight, only procedural adherence to dominance and control. The theft goes unnoticed due to the collective’s overconfidence in its systems.

The Kroton Collective is represented by the interrogating Kroton, whose actions and dialogue reflect the collective’s cold, hierarchical logic. It directs subordinates (e.g., Kroton 2) to prioritize the TARDIS and …

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S6E21 · The Krotons Part 3
Doctor exploits Krotons' tellurium weakness

Not applicable (crystalline beings lack human emotions), but their functional state is one of heightened surveillance and readiness to intervene if the Doctor and Zoe pose a threat.

The Kroton is implied to be surveilling the Doctor and Zoe from the cliff top, as suggested by Zoe's line, 'I've got a funny feeling we're being watched.' While not …

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S6E21 · The Krotons Part 3
Zoe’s Paranoia and the Doctor’s Blind Spot

Not directly observable, but their implied surveillance suggests a cold, procedural logic focused on monitoring and potentially countering the Doctor and Zoe's actions.

The Krotons are not physically present in this scene but are implied to be surveilling the Doctor and Zoe from the cliff. Their unseen presence looms over the interaction, reinforcing …

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S6E21 · The Krotons Part 3
Kroton surveillance traps Jamie’s warning

Emotionally neutral—its actions are driven by cold logic and institutional protocol, devoid of personal investment or empathy.

The Kroton in the control room methodically tracks Zoe’s location on a monitor, its voice cold and detached as it announces her narrowing radius (30 → 10). Its actions are …

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S6E21 · The Krotons Part 3
Doctor feigns compliance under Kroton threat

Cold and detached, with no emotional investment in the Doctor or Zoe beyond their utility as intelligence assets.

The Kroton Collective is represented through Kroton 2’s off-screen command, enforcing their authority and surveillance over the Doctor and Zoe. Their presence is felt through the abrupt interruption of the …

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S6E21 · The Krotons Part 3
Jamie’s desperate Kroton attack fails

Arrogantly indifferent. The Kroton does not register Jamie’s defiance as a threat but as a minor disruption to its operations. Its emotional state is one of cold, calculating dominance, treating Jamie’s attack as beneath its notice—until it is neutralized.

The Kroton waddles toward Jamie with mechanical precision, its crystalline form reflecting the cold, sterile light of the control room. It issues a series of sharp, repetitive commands—'Stop!'—as Jamie sprays …

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S6E21 · The Krotons Part 3
Krotons order TARDIS destruction

Unshakable resolve—no remorse or hesitation, only the clinical certainty that the TARDIS must be destroyed to preserve Kroton dominance. The loss of the auto-scanner is treated as a tactical failure, not a setback.

The primary Kroton commander dominates the Dynatrope control room, its crystalline form radiating authority. It detects the auto-scanner's loss of contact with the TARDIS and immediately shifts from surveillance to …

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S6E21 · The Krotons Part 3
Kroton destroys TARDIS under fire

No emotional state—pure procedural execution. The Kroton operates as an extension of the Dynatrope’s will, its actions driven by cold logic and the collective’s objectives. There is no triumph, no malice—only the fulfillment of a function.

The Kroton moves with mechanical precision down the cliffside, its crystalline form reflecting the harsh light as it locks onto the TARDIS. It fires a canister with cold efficiency, the …

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S6E21 · The Krotons Part 3
Jamie feigns unconsciousness to spy on Krotons

Authoritative and dismissive, with an undercurrent of urgency. The Commander’s emotional state is one of controlled desperation—it knows the Krotons’ survival is at stake, and its orders reflect a need to reassert dominance over the situation.

The Kroton Commander dominates the scene with an air of cold authority, its crystalline form emanating a harsh, commanding presence. It issues orders to Kroton 2 with abrupt efficiency, its …

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S6E21 · The Krotons Part 3
TARDIS escapes via HADS protocol

Not applicable (off-screen, implied threat)

The Krotons are referenced indirectly as the aggressors whose attack triggered the TARDIS's HADS system. Their absence from the scene is telling—they have retreated or been evaded, but their threat …

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S6E21 · The Krotons Part 3
Doctor redirects Zoe to mission priority

Not applicable (as an organization, emotions are not attributed, but their actions reflect cold, utilitarian logic).

The Krotons are not physically present in this event but are implied as the cause of the TARDIS's evasive maneuver. Their hostile action triggers the Hostile Action Displacement System (HADS), …

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S6E21 · The Krotons Part 3
Jamie escapes while Krotons focus on Dynatrope failure

Coldly resolute—there is no panic, only the unyielding drive to maintain control. The Dynatrope’s failure is a technical problem, not a existential threat, and Kroton’s focus remains on solutions: recapture the high brains, stabilize the machine.

Kroton, the dominant figure in the control room, orchestrates the technical exchange with Kroton 2, its voice a sharp, commanding staccato. It demands updates on the Dynatrope’s status—ileal power, gravitation …

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S6E21 · The Krotons Part 3
Gonds Reveal Suicidal Attack Plan

Not directly shown, but inferred as cold and menacing—their potential actions are what drive the Gonds’ desperation and the Doctor’s urgency.

The Krotons are referenced indirectly as the target of the Gonds’ sabotage plan. Their looming presence is implied through Thara and Vana’s dialogue, particularly the mention of their potential retaliation. …

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S6E21 · The Krotons Part 3
Doctor Halts Gond Suicide Attack

Not applicable (off-screen), but their presence is felt through the Gonds' fear and the Doctor's urgency.

The Krotons are not physically present in this event but are the looming antagonist force driving the Gonds' actions. Their influence is felt through the Gonds' desperate plan to sabotage …

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S6E21 · The Krotons Part 3
Krotons stabilize Dynatrope after anomaly

Urgent and slightly unnerved—masking deep concern with a facade of command.

Kroton, the commander, dominates the scene with a mix of authority and barely contained urgency. Its head spins wildly as the gravitational imbalance disrupts the control room, but it quickly …

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Affiliation

Krotons
Dynatrope Operation, Mental Exploitation, and Coercive Domination of Gond Society