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Arnold

vengeful authoritative procedurally bound coercive under pressure duplicitous calculating ethically conflicted institutionally loyal
Arnold Jellicoe serves as a loyal if conflicted administrator within the Think Tank’s high-security research facility. A technically trained bureaucrat with a rigid adherence to protocol, he enforces directives despite ethical discomfort when those orders yield violent consequences. His professional competence is eclipsed by institutional loyalty, often masking unease behind procedural precision. Kettlewell’s rebellion exposes the fragility of his obedience; Jellicoe’s instinctive resort to threats reveals a functional enforcer rather than a zealot.
86 appearances
Military Defense Against Yeti Invasion
Also known as: Staff Arnold, Arnold, Jellicoe

Arnold's Journey

A timeline through the narrative

86 moments
Season 5 (60) Season 12 (26)
S5E23 · The Web of Fear Part 1
Jamie and Victoria captured by soldiers

Nervous and on edge, but compliant with Sergeant Arnold's orders.

Weams, a junior soldier, carries a cable drum and expresses nervousness about potential disturbances in the tunnels. He alerts Sergeant Arnold to the sound of Jamie and Victoria, contributing to …

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S5E23 · The Web of Fear Part 1
Doctor splits team in the tunnels

Nervous and jumpy, with a sense of relief when his suspicions are confirmed by the discovery of intruders.

Weams carries the cable drum with Corporal Blake and expresses hearing a noise, alerting Sergeant Arnold to the potential presence of intruders. His actions reflect his nervousness and jumpiness, contributing …

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S5E23 · The Web of Fear Part 1
Arnold asserts military control over prisoners

Controlled urgency—masking deeper anxiety about the Yeti threat with a facade of disciplined command.

Sergeant Arnold dominates the scene with rapid-fire orders, consolidating his authority over both prisoners (Jamie and Victoria, off-screen) and subordinates. His tone is dismissive and impatient, particularly when silencing the …

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S5E23 · The Web of Fear Part 1
Knight receives prisoners and cable update

Likely fearful and disoriented by her capture, but trusting in Jamie's ability to protect her.

Victoria is mentioned as one of the two 'youngsters' captured in the tunnels by Sergeant Arnold. Like Jamie, her capture is a direct result of the military's actions, and her …

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S5E23 · The Web of Fear Part 1
Arnold replaces Blake as captor

Detached and focused, with a sense of urgency driven by the military’s crisis. His emotional state is one of professional detachment, as he views the prisoners as obstacles to be managed rather than individuals in distress.

Sergeant Arnold strides into the scene with an air of authority, his presence immediately dominating the space. His brusque command—You two, in here.—brooks no argument, as he takes over from …

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S5E23 · The Web of Fear Part 1
Arnold reveals tunnel demolition threat

Amused indifference bordering on cruelty

Sergeant Arnold dominates this event, shifting seamlessly from interrogator to casual informant. His initial suspicion of Jamie and Victoria—‘you shouldn’t have come down here’—gives way to a chilling nonchalance as …

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S5E23 · The Web of Fear Part 1
Arnold reveals tunnel demolition plan

Authoritative and detached, treating the demolition as a necessary operational decision.

Captain Knight’s presence in this event is brief but authoritative. He enters, confirms the demolition order with Sergeant Arnold in a clipped, efficient exchange (‘Clear to fire, Staff?’ / ‘Yes, …

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S5E24 · The Web of Fear Part 2
Detonator Sabotage Confirmed

Suspicious and Frustrated: Arnold’s emotional state is a mix of suspicion and frustration, his authority challenged by the unexplained sabotage. He’s on edge, his focus narrowing to the Doctor as the likely culprit, which drives his urgency to locate him and restore order.

Staff Sergeant Arnold takes charge of the inspection, his demeanor authoritative yet increasingly tense as the evidence of sabotage becomes clear. He grips the detonator, his frustration palpable as he …

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S5E24 · The Web of Fear Part 2
Victoria Reveals Time-Travel Truth

Not directly observable, but inferred as focused and determined in his search for the Doctor, contributing to the overall effort to resolve the crisis.

Arnold is mentioned briefly by Anne as having gone to look for the Doctor in the tunnels. His absence highlights the urgency of the situation and the coordinated effort to …

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S5E24 · The Web of Fear Part 2
Jamie’s Revenge Theory and Time Collides

Not directly observable, but inferred to be focused and determined in his search for the Doctor.

Arnold is mentioned briefly by Anne as having gone to look for the Doctor in the tunnels. His absence from the scene highlights the urgency of the Doctor’s disappearance and …

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S5E24 · The Web of Fear Part 2
Jamie and Victoria Reunite with Travers

Not directly observable, but inferred as focused and determined, driven by his military training and the need to locate the Doctor as a potential threat or asset.

Arnold is referenced but not physically present, his role in the scene limited to the mention of his search for the Doctor in the tunnels. His absence highlights the fragmented …

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S5E24 · The Web of Fear Part 2
Arnold reveals the Doctor’s sabotage

Neutral and focused, adhering to the chain of command without visible emotional investment.

Weams is present in the ops room but plays a minimal role in this exchange. He confirms the Captain’s absence and acknowledges Arnold’s orders to stand down, reacting to Jamie …

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S5E24 · The Web of Fear Part 2
Arnold demands Jamie reveal the Doctor’s location

Cynical and detached, viewing the unfolding conflict as another layer of drama to be reported. His pessimism underscores the hopelessness permeating the ops room.

Chorley is present but does not directly participate in the confrontation. His earlier speculation about the lost soldiers (‘Must have been quite a battle’) adds to the room’s pessimistic atmosphere. …

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S5E24 · The Web of Fear Part 2
Anne and Chorley Clash Over Truth

Implied to be tense and focused, with a growing sense of urgency. His actions suggest a man under pressure, making tough calls in a high-stakes environment where trust is scarce.

Arnold is referenced by Chorley as the source of the "evidence" that the tunnel explosion was sabotaged and as the one who took Jamie back into the tunnels. His actions, …

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S5E24 · The Web of Fear Part 2
Victoria defends the Doctor under scrutiny

Suspicious and confrontational, his opportunism masking a deeper fear of being left out of the story or misled by those in power.

Harold Chorley bursts into the Goodge Street common room, his typewriter in hand, and immediately begins interrogating Victoria and Anne about the Doctor, Jamie, and their connection to the tunnel …

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S5E24 · The Web of Fear Part 2
Yeti ambush forces desperate retreat

Cautiously concerned, with a underlying tension between his instinct for self-preservation and his duty to follow orders. His skepticism is tempered by the urgency of the situation, but he remains wary of Knight's gambits.

Staff Sergeant Arnold returns with Jamie and reports to Knight about the Yeti attack, his skepticism about Knight's risky plan to use explosives evident in his tone. He questions the …

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S5E24 · The Web of Fear Part 2
Knight’s Explosives Fail Against Yeti

None (as mechanical enforcers), but their actions convey an unnatural, almost supernatural threat.

The Yeti advance relentlessly, their web guns coating the barricade in thick, pulsating cobwebs. When Knight fires a test shot, the webbing absorbs the blast entirely, leaving the Yeti unharmed. …

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S5E24 · The Web of Fear Part 2
Explosives fail against Yeti webbing

Cautious and skeptical, Arnold's emotional state is a mix of concern for the plan's risks and resignation to the necessity of extreme measures in the face of the Yeti threat.

Staff Sergeant Arnold returns with Jamie and reports the Yeti's advance to Knight. He questions the risky plan to use explosives but ultimately defers to Knight's authority. Arnold's presence is …

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S5E24 · The Web of Fear Part 2
Yeti withdrawal forces abrupt evacuation

Composed and focused, his experience allowing him to read the room and mediate between the group’s competing instincts without losing sight of the mission’s priorities.

Sergeant Arnold acts as the bridge between Knight’s authority and the group’s tensions, his calm demeanor a counterbalance to Thompson’s impatience. He vouches for Jamie’s expertise, lending credibility to his …

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S5E24 · The Web of Fear Part 2
Fungus advances as Victoria vanishes

Null (absent from the scene), but implied to be under stress given the context of his potential exposure.

Staff Sergeant Arnold is not physically present in this event, but his potential exposure to the fungal infection is a critical concern raised by Weams and Blake. His absence underscores …

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S5E24 · The Web of Fear Part 2
Knight Confronts Fungal Crisis Leadership

Neutral with underlying despair (his tone suggests acceptance of the dire circumstances)

Staff Sergeant Arnold returns with Knight and confirms that the Doctor, Victoria, and another individual (implied to be the Doctor) are missing in the tunnels. His dialogue is concise and …

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S5E24 · The Web of Fear Part 2
Evans reveals pyramid-Yeti connection

Authoritative and unyielding, with a sense of urgency driven by the Yeti threat. His emotional state is marked by a deep commitment to military order and a distrust of civilians like Jamie and Evans.

Sergeant Arnold stands rigidly in the alcove, enforcing military protocol with a no-nonsense demeanor. He confronts Evans with sharp questions, ensuring the soldier adheres to military decorum. His dialogue is …

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S5E24 · The Web of Fear Part 2
Jamie and Evans defy Knight’s retreat

Frustrated and disapproving, but constrained by his role as a subordinate. His silence speaks volumes—he believes Jamie’s mission is reckless and that Knight should have enforced a stricter retreat.

Sergeant Arnold stands slightly behind Captain Knight, his arms crossed and his expression stern as he listens to Evans’ report. He interjects sharply when Evans first speaks, enforcing military discipline …

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S5E24 · The Web of Fear Part 2
Collapse of Hope in the Ops Room

Grim and unyielding, his emotional state aligns with the military’s need for harsh realism. He shows no sympathy for Travers’ plea, as his duty is to prepare the unit for the worst possible outcome.

Staff Sergeant Arnold stands beside Knight, his voice grim as he supports the Captain’s assessment that anyone on the Circle Line is likely dead. His tone is final, leaving no …

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S5E24 · The Web of Fear Part 2
Monument Station as Last Hope

Steely and detached, focusing on the mission rather than personal loss

Staff Sergeant Arnold stands beside Knight, his voice grim as he echoes the Captain’s fatalism. His line—‘If any of those three are on the Circle Line, sir, they've had it’—is …

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S5E25 · The Web of Fear Part 3
Knight delegates amid escalating crisis

Frustrated and overwhelmed, his sarcasm masking a deeper anxiety about the mission’s viability and the military’s ability to maintain order.

Staff Arnold expresses confusion and frustration about the Colonel’s sudden appearance, remaining in charge of the operations room after Knight leaves. His dialogue with Weams—‘It’s turning into a proper holiday …

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S5E25 · The Web of Fear Part 3
Doctor and Victoria arrive under military escort

Frustrated and slightly resentful of the disruption, but compliant with orders

Staff Arnold expresses confusion and frustration at the Colonel’s sudden appearance, questioning the disruption to the Ops Room’s operations. Left in charge by Knight, he voices his exasperation with the …

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S5E25 · The Web of Fear Part 3
Colonel’s Arrival Disrupts Command

Frustrated and sarcastic, masking deeper disillusionment with the mission

Staff Arnold is the voice of frustration in this event, his sarcasm ('It's turning into a proper holiday camp, this place.') cutting through the tension like a knife. His reaction …

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S5E25 · The Web of Fear Part 3
Chorley’s desperate escape gambit fails

A mix of controlled frustration (at Chorley’s disregard for military protocol and the dangers) and resigned exhaustion (from the weight of leadership in a hopeless situation). His sarcastic remark to Weams betrays a simmering resentment toward Chorley’s self-serving priorities, but his core duty-driven demeanor remains intact.

Staff Sergeant Arnold stands firm in the ops room, his posture rigid with military discipline as he fields Chorley’s frantic demands for an escape route. He methodically explains the impassability …

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S5E25 · The Web of Fear Part 3
Chorley’s escape plea fractures team unity

Neutral but firm, fully aligned with the Colonel’s decision to remove Chorley and maintain order.

Staff Sergeant Arnold responds to the Colonel’s order to turn off the lights as Chorley is dismissed, acting as an extension of the Colonel’s authority. His action is swift and …

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S5E25 · The Web of Fear Part 3
Colonel neutralizes Chorley and approves explosive plan

Neutral and efficient, with no visible emotional investment in the strategic decisions. His emotional state is driven by his role as a logistics officer, focusing on executing practical tasks to support the team's objectives.

Staff Sergeant Arnold confirms the availability of explosives and mentions the baggage trolley's location, leaving to retrieve or prepare it for the Doctor's plan. His demeanor is efficient and neutral, …

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S5E25 · The Web of Fear Part 3
Colonel sidelines Chorley and approves explosive plan

Practical and slightly optimistic, with a sense of urgency. He is focused on the task at hand and believes the plan can work, provided the logistics are handled correctly.

Staff Sergeant Arnold confirms the availability of explosives and is tasked with locating a baggage trolley for the Doctor’s plan. He leaves to retrieve the trolley, his practical demeanor reflecting …

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S5E25 · The Web of Fear Part 3
Sabotage exposed in the ops room

Neutral and professional on the surface, but subtly tense as he realizes the significance of the unsecured door. His emotional state is one of quiet concern, aware that his observation has escalated the crisis.

Staff Arnold enters the ops room to report on the trolley’s readiness, his tone neutral but his posture betraying a hint of unease. He delivers the critical piece of information—the …

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S5E25 · The Web of Fear Part 3
Colonel seals fortress against Yeti threat

Alert and focused, operating within the military’s hierarchical structure without question. His demeanor is purely professional, reflecting the urgency of the situation and his trust in the Colonel’s leadership.

Staff Arnold responds to the Colonel’s order with immediate compliance, his disciplined military bearing evident in his swift acknowledgment ('Sir!'). He plays a supporting role in this moment, reinforcing the …

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S5E25 · The Web of Fear Part 3
Doctor confronts web-infested explosives store

Neutral and professional, focused on executing orders without hesitation. His demeanor is calm and efficient, reflecting his role as a subordinate in a high-pressure environment.

Staff Arnold responds promptly to the Colonel’s order, closing the door as directed. His action is dutiful and reflects the military’s adherence to protocol. While not directly involved in the …

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S5E25 · The Web of Fear Part 3
Colonel excludes Chorley from orders

Neutral but attentive—he follows orders without question, though the undercurrent of suspicion in the room is palpable to him.

Arnold enters the ops room briefly to report the completion of the search and relay the Colonel’s orders to Captain Knight and Professor Travers. His demeanor is dutiful and neutral, …

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S5E26 · The Web of Fear Part 4
Colonel reroutes group through Piccadilly Line

Uneasy but disciplined; his concern about the fungus’s behavior betrays a flicker of fear beneath his professional demeanor.

Staff Sergeant Arnold stands alert in Tunnel Two, his posture tense as he questions the approaching figure before recognizing Captain Knight’s party. His observation—'Just as if it knew what we …

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S5E26 · The Web of Fear Part 4
Fungus Blocks Holborn, Orders to Retreat

Forced levity masking underlying anxiety—Evans' joke and Arnold's reaction expose the group's strained morale, where humor becomes a temporary shield against the creeping dread of the fungus.

Evans approaches Staff Arnold with a casual, almost joking demeanor ('Hello, Staff. It's all right, it's just Staff Arnold!'), his dialogue lightening the tension for a moment. Arnold's sharp retort …

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S5E26 · The Web of Fear Part 4
Arnold Orders Withdrawal and Fungus Sample Seized

Casual and unburdened—he uses humor to deflect from the underlying tension, though his joke about 'creeping up' may subtly reflect his awareness of the group’s unease.

Evans approaches the group with his characteristic casual demeanor, jokingly acknowledging his tendency to 'sneak up' on people. His interaction with Arnold is lighthearted, providing a brief moment of levity …

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S5E26 · The Web of Fear Part 4
Travers abduction confirmed and Yeti motives debated

Arnold is focused and urgent, driven by a sense of duty and the need to address the escalating threat. His emotional state is one of determination and a desire to take action.

Staff Sergeant Arnold reports Weams' death to the Colonel and interacts with Evans, showing urgency and a sense of duty. He is involved in addressing the escalating threat of the …

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S5E26 · The Web of Fear Part 4
Colonel Demands Yeti Break-In Explanation

Arnold’s emotional state is one of grim determination, with a sense of urgency and loss. He is focused on managing the crisis and supporting his team, but the weight of Weams’ death and the escalating threat is evident in his demeanor.

Staff Sergeant Arnold reports Weams’ death to the Colonel and later leaves with Evans to address the crisis in the tunnels. His grim demeanor reflects the escalating danger and the …

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S5E26 · The Web of Fear Part 4
Yeti abduction and fungus escalation

Solemn and focused, his professionalism masking the weight of the losses he is reporting, driven by a sense of duty to his men and the mission.

Staff Sergeant Arnold delivers the grim news of Weams' death to the Colonel, his tone solemn and focused. He coordinates with Evans to address the situation, his military discipline evident …

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S5E26 · The Web of Fear Part 4
Doctor reveals coordinated dual-front attack

Calm but subtly inquisitive—he’s focused on his tasks, but his questions reveal a mind working through the implications of the Yeti’s actions. His emotional state is one of controlled curiosity, tempered by the urgency of the situation.

Evans fetches a chair for Anne, his actions efficient but his tone probing. He engages the Doctor in a brief exchange about Travers’ abduction, his questions hinting at suspicion or …

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S5E26 · The Web of Fear Part 4
The Homing Device Threat Exposed

Defensive and anxious, with a mix of fear and resentment toward the accusations.

Evans enters the laboratory reluctantly, delivering a reprogrammed model Yeti to the Doctor. He claims to have found it near Weams' body and grows defensive when the Doctor questions his …

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S5E26 · The Web of Fear Part 4
Lethbridge-Stewart divides forces amid dissent

Focused and resolute, with a sense of duty overriding any personal apprehension about the mission's risks.

Staff Sergeant Arnold stands beside the Colonel, confirming his assignment to lead the tunnel team with Lane and Evans. He responds promptly to the Colonel's questions with a firm 'Yes, …

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S5E26 · The Web of Fear Part 4
Arnold asserts command and rallies the team

Resolute and focused, with an undercurrent of urgency that borders on impatience—he knows the stakes, and hesitation is a luxury they cannot afford.

Staff Sergeant Arnold dominates the scene with his commanding presence, his voice sharp and unyielding as he dismantles Evans' excuses with military precision. His posture is rigid, his gaze fixed—every …

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S5E26 · The Web of Fear Part 4
Tunnel Ambush and TARDIS Vulnerability

Steely resolve masking deep unease. Arnold’s dialogue ('I'll go by mesen') suggests a quiet acceptance of potential death, but his insistence on Lane’s help reveals a flicker of hope—or at least a refusal to go alone. His vanishing is abrupt, almost anticlimactic, emphasizing the Intelligence’s indifference to human bravery.

Arnold takes charge of the TARDIS transport mission, donning a gas mask and pushing the trolley into the fungus despite its obvious dangers. His leadership is resolute but fatalistic—he acknowledges …

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S5E27 · The Web of Fear Part 5
Travers secretly dispatches Arnold

Alert focus amid operational urgency

Sweat-streaked Arnold bursts from the tunnel undetected, halts at Travers' urgent hush, receives whispered orders to reach HQ and alert the Doctor to their position, affirms compliance with crisp military …

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S5E27 · The Web of Fear Part 5
Travers blocks Victoria’s escape attempt

Focused determination with underlying urgency

Bursts from the tunnel mouth, sweat-streaked and urgent, responds briefly to Travers' questions, receives instructions to reach HQ and inform the Doctor of their location, affirms compliance, and departs silently …

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S5E27 · The Web of Fear Part 5
Arnold’s return and the rescue dilemma

Disoriented confusion mixed with apologetic urgency

Staggers disoriented from shadows into their path, apologizes profusely while recounting blackout during trolley push through fungus and sighting of guarded captives, pledges to relay to Doctor, then complies with …

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S5E27 · The Web of Fear Part 5
Jamie and Lethbridge-Stewart Confront the Yeti Threat

Gruff resolve masking injury discomfort

Injured Arnold snaps at Evans to cease stuttering and answer, directs Colonel's attention to the map's Warren Street marker, and thanks Colonel for the aid order, upholding composure despite wound.

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S5E27 · The Web of Fear Part 5
Arnold undermines Evans with trivial tasks

Smug dominance veiling underlying frustration

Arnold impatiently urges Evans on during bandaging, then delivers cutting sarcasm by calling him 'doctor' and issuing chained pointless tasks—return gear, shift chair—asserting control with curt dismissals.

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S5E28 · The Web of Fear Part 6
Evans Deserts Arnold in Tunnel

Furious and frustrated, with a calculating undercurrent of menace that suggests his anger is not merely personal but tied to a larger, inhuman agenda.

Arnold, standing rigid in the tunnel, asserts his authority with a mix of paternalistic concern and barely contained fury. His voice escalates from reasoned persuasion to outright threats as Evans …

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S5E28 · The Web of Fear Part 6
Colonel Distracts for Arnold's Escape

Coldly determined, masking his true intentions behind a facade of urgency and loyalty. His emotional state is one of calculated control, ensuring the distraction succeeds without arousing immediate suspicion.

Arnold, under the Intelligence’s control, initiates a calculated escape by persuading the Colonel to create a distraction. He feigns urgency and loyalty, claiming his freedom could aid the mission, while …

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S5E28 · The Web of Fear Part 6
Chorleys Desperate Confession and Arnolds Skepticism

Coldly detached, operating with the Great Intelligence’s voice in his ear. His surface calm belies a predatory focus—he’s not just interrogating Chorley; he’s testing the journalist’s loyalty (or lack thereof) to the Intelligence’s cause. There’s a thrill in his control, a satisfaction in watching Chorley squirm under the weight of implied guilt.

Arnold moves through the tunnel with the measured authority of a man in control, his demeanor shifting from feigned concern to predatory skepticism as Chorley unravels. His initial patronizing tone …

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S5E28 · The Web of Fear Part 6
Arnold Revealed as Intelligence Host

Coldly triumphant initially, shifting to lifelessness as the Intelligence's control over his body is severed and he dies.

Arnold, revealed as the host of the Great Intelligence, menacingly threatens Jamie's life to coerce the Doctor into the pyramid machine. His voice is devoid of its usual accent, replaced …

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S5E28 · The Web of Fear Part 6
Doctor sabotages pyramid machine while trapped

Triumphant and commanding as the Intelligence, transitioning to lifeless and defeated as the machine collapses.

Arnold, fully under the control of the Great Intelligence, taunts the Doctor and threatens Jamie's life to ensure cooperation. He adjusts the pyramid machine and lowers the metal circlet onto …

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S5E28 · The Web of Fear Part 6
Jamie’s Counterattack Disrupts the Doctor’s Plan

Cold and dominant, then destroyed in a sudden, violent collapse.

Arnold, revealed as the lifeless host of the Great Intelligence, commands the Doctor's compliance and threatens Jamie. He forces the Doctor into the pyramid machine, taunting him about the inevitability …

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S5E28 · The Web of Fear Part 6
Doctor’s Sabotage Plan Undermined

Authoritative and detached, devoid of personal emotion as a conduit for the Intelligence's will

Arnold, revealed as the host for the Great Intelligence, commands the Doctor into the mind-transfer machine and threatens Jamie's life to ensure cooperation. His cold, lifeless demeanor as a vessel …

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S5E28 · The Web of Fear Part 6
Doctor Rejects Praise and Flees Fame

None (deceased, body inert). His earlier cold, commanding demeanor is replaced by the emptiness of death, serving as a silent witness to the Intelligence's defeat.

Arnold lies motionless on the ground, his body a charred husk after the helmet is thrown into the pyramid machine. His blank, lifeless face is a stark reminder of the …

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Affiliation

The Great Intelligence
Psychic Domination and Robotic Yeti Command