The Doctor
Tom Baker
Sarah Jane Smith
Elisabeth Sladen
Abbott
David Purcell
Intern
Renu Setna
Guard
Robin Hargrave
Driscoll
Roy Boyd
Kastrian Eldrad
Stephen Thorne
Eldrad (female form)
Judith Paris
Zazzka
Roy Pattison
King Rokon
Roy Skelton
Dr. Carter
Rex Robinson
Professor Watson
Glyn Houston
Miss Jackson
Frances Pidgeon
Elgin
John Cannon
Stunt Coordinator
Max Faulkner
Original Music Composer
Dudley Simpson
Producer
Philip Hinchcliffe
Script Editor
Robert Holmes
Director
Lennie Mayne
Writer
Bob Baker
Dave Martin
Costume Design
Barbara Lane
Production Design
Christine Ruscoe
Camera Operator
Max Samett
Editor
Christopher Rowlands
Sound
Graham Bedwell
Makeup Artist
Judy Neame
Production Assistant
Marion McDougall
Special Sound Effects
Dick Mills
Lighting Director
Derek Slee
Brian Hiles
Visual Effects Designer
Colin Mapson