Tom Baker

The Doctor

إليزابيث سلايدن

Sarah Jane Smith

Philip Madoc

Doctor Solon

Colin Fay

Condo

Michael Spice

Morbius (voice)

Stuart Fell

Morbius Monster

Cynthia Grenville

Maren

Gillian Brown

Ohica

John Scott Martin

Kriz

Jon Pertwee

The Doctor (3) (picture) (uncredited)