Cast

Peter Davison

The Doctor

Janet Fielding

Tegan Jovanka

Mark Strickson

Vislor Turlough

Cyril Luckham

The White Guardian

Valentine Dyall

The Black Guardian

Keith Barron

Striker

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Christopher Brown

Marriner

Lynda Baron

Wrack

Leee John

Mansell

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James McClure

First Officer

Crew

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Fiona Cumming

Director (Directing)

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Barbara Clegg

Writer (Writing)

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Eric Saward

Script Editor (Writing)

John Nathan-Turner

Producer (Production)

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Malcolm Clarke

Original Music Composer (Sound)