The Doctor
Tom Baker
Romana
Lalla Ward
Sagan
Vincent Pickering
Gundan
Robert Vowles
Lazlo
Jeremy Gittins
Adric
Matthew Waterhouse
K9 (voice)
John Leeson
Rorvik
Clifford Rose
Packard
Kenneth Cope
Lane
David Kincaid
Aldo
Freddie Earlle
Royce
Harry Waters
Biroc
David Weston
Producer
John Nathan-Turner
Executive Producer
Barry Letts
Director
Graeme Harper
Production Assistant
Original Music Composer
Peter Howell
Paul Joyce
Writer
Stephen Gallagher
Script Editor
Christopher H. Bidmead
Sound
Alan Fogg
Special Sound Effects
Dick Mills
Lighting Director
John Dixon
Editor
Rod Waldron
Visual Effects
Robin Lobb
Mat Irvine
Production Design
Graeme Story
Makeup Artist
Pauline Cox
Costume Design
June Hudson
Camera Operator
Alec Wheal