Cast (21)

Colin Baker

The Doctor

Bonnie Langford

Mel Bush

Michael Jayston

The Valeyard

Lynda Bellingham

The Inquisitor

Honor Blackman

Professor Sarah Lasky

Michael Craig

Commodore Travers

Denys Hawthorne

Rudge

Yolande Palfrey

Janet

Malcolm Tierney

Doland

David Allister

Bruchner

Tony Scoggo

Grenville

Arthur Hewlett

Kimber

Simon Slater

Edwardes

Sam Howard

Atza

Leon Davis

Ortezo

Hugh Beverton

First Guard

Barbara Ward

Mutant / Ruth Baxter

Mike Mungarvan

Duty Officer

Martin Weedon

Second Guard

Peppi Borza

First Vervoid

Bob Appleby

Second Vervoid

Crew (18)

Chris Clough

Director

Jane Baker

Writer

Pip Baker

Writer

John Nathan-Turner

Producer

John Nathan-Turner

Script Editor

Malcolm Clarke

Original Music Composer

Alec Wheal

Camera Supervisor

Andrew Rose

Costume Design

Dinah Walker

Production Design

Shaunna Harrison

Makeup Artist

Jane Wellesley

Production Assistant

Ian Fraser

Production Manager

Dick Mills

Special Sound Effects

Don Babbage

Lighting Director

Brian Clark

Sound

Danny Popkin

Visual Effects

Hugh Parson

Editor

Kevin Molloy

Visual Effects