Peter Davison

The Doctor

Acting

Janet Fielding

Tegan Jovanka

Acting

Mark Strickson

Vislor Turlough

Acting

Cyril Luckham

The White Guardian

Acting

Valentine Dyall

The Black Guardian

Acting

Keith Barron

Striker

Acting

Christopher Brown

Marriner

Acting

Lynda Baron

Wrack

Acting

Leee John

Mansell

Acting

James McClure

First Officer

Acting

Tony Caunter

Jackson

Acting

Clive Kneller

Collier

Acting