Cast

Tom Baker

The Doctor

Elisabeth Sladen

Sarah Jane Smith

Tony Beckley

Harrison Chase

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Kenneth Gilbert

Richard Dunbar

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Michael Barrington

Sir Colin Thackeray

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Sylvia Coleridge

Amelia Ducat

John Challis

Scorby

Mark Jones

Arnold Keeler/Krynoid Voice

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Seymour Green

Hargreaves

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Michael McStay

Derek Moberley

Crew

Robert Holmes

Script Editor (Writing)

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Robert Banks Stewart

Writer (Writing)

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Geoffrey Burgon

Music (Sound)

Douglas Camfield

Director (Directing)

Philip Hinchcliffe

Producer (Production)