Tom Baker
The Doctor
Tom Baker
The Doctor
Elisabeth Sladen
Sarah Jane Smith
Philip Madoc
Doctor Solon
Colin Fay
Condo
Michael Spice
Morbius (voice)
Stuart Fell
Morbius Monster
Cynthia Grenville
Maren
Gilly Brown
Ohica
John Scott Martin
Kriz
Robert Holmes
Writer
Terrance Dicks
Writer
Christopher Barry
Director
Robin Bland
Writer
Philip Hinchcliffe
Producer
Robert Holmes
Script Editor
Dudley Simpson
Original Music Composer