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Object

Disguise Coat

Object worn by a Zygon during shape-shifting disguise attempts, transforming into a tailored coat.
3 appearances

Purpose

To replicate and replace human clothing as part of the Zygon’s infiltration strategy, allowing the alien to assume an exact physical likeness of the Doctor’s ally.

Significance

Its transformation marks the moment Sarah’s worst fears crystallize: the mission’s stakes pivot on whether the disguise holds, and her trust in the Doctor’s tactics must outpace her terror at this betrayal of surface identity.

Appearances in the Narrative

When this object appears and how it's used

3 moments
S13E14 · The Android Invasion Part 2
Sarah twists ankle during woodland pursuit

The Doctor's disguise waistcoat and jacket, initially repurposed from Caber's Zygon disguise, becomes the primary decoy object. After hoisting Sarah to safety, the Doctor removes the jacket, combines it with her scarf, and drags both across the forest floor to create a compelling false trail leading toward the river where pursuers are lured.

Before: Worn by the Doctor as part of his human disguise ensemble
After: Abandoned and discarded along the decoy path, later washed downstream by the river current
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S13E14 · The Android Invasion Part 2
Sarah is captured after hiding in a tree

The disguise waistcoat and jacket, shed from the Doctor’s earlier Zygon guise, become a secondary decoy ensemble. Dragged across ground behind the scarf, the baffled dogs switch trailing priority while the Doctor escapes unseen toward the river’s rapids.

Before: Worn by the Doctor as part of a fake human exterior, bloodstained from prior encounter
After: Abandoned next to the decoy scarf beside the river, mud-smeared and damp; its former disguise purpose fulfilled
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S13E14 · The Android Invasion Part 2
Doctor takes desperate river escape

The Doctor discards his disguise waistcoat and jacket beside the river, knotting them to Sarah’s scarf to create a combined fabric trail leading toward the water. The garments’ wool weave and human scent misdirect hounds’ attention, luring them downstream as the Doctor plunges into rapids, stripping himself of every human guise.

Before: Part of the Doctor’s Zygon-derived human disguise, tailored to match Caber’s styling with visible wear and bloodstains.
After: Draped across riverbank roots, soaked and snagged by current, serving purely as a decoy until swept downstream.
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