Tom Baker

The Doctor

Louise Jameson

Leela

John Leeson

K9 Mk. I (voice)

Henry Woolf

The Collector

Richard Leech

Gatherer Hade

Jonina Scott

Marn

Roy Macready

Cordo

David Rowlands

Bisham

William Simons

Mandrel

Adrienne Burgess

Veet

Michael Keating

Goudry

Carole Hopkin

Nurse

Derek Crewe

Synge

Colin McCormack

Commander

Tom Kelly

Guard

Pennant Roberts