Tom Baker
The Doctor
Cast (12)
Elisabeth Sladen
Sarah Jane Smith
Ian Marter
Harry Sullivan
Wendy Williams
Vira
Kenton Moore
Noah
Richardson Morgan
Rogin
John Gregg
Lycett
Christopher Masters
Libri
Stuart Fell
The Wirrn
Nick Hobbs
The Wirrn
Gladys Spencer
High Minister (voice)
Peter Tuddenham
Voices on Nerva (voice)
Crew (14)
Robert Holmes
Writer
Rodney Bennett
Director
Philip Hinchcliffe
Producer
Barbara Kidd
Costume Design
Roger Murray-Leach
Production Design
Dudley Simpson
Original Music Composer
Sylvia James
Makeup Artist
Marion McDougall
Production Assistant
Robert Holmes
Script Editor
Dick Mills
Special Sound Effects
Nigel Wright
Lighting Director
John Lloyd
Sound
John Friedlander
Visual Effects
Tony Oxley
Visual Effects