Calificación
Reparto

Colin Baker
The Doctor

Patrick Troughton
The Doctor

Nicola Bryant
Peri Brown

Frazer Hines
Jamie McCrimmon

John Stratton
Shockeye

Jacqueline Pearce
Chessene

Laurence Payne
Dastari

Aimée Delamain
Doña Arana

James Saxon
Oscar

Carmen Gómez
Anita

Tim Raynham
Major Varl

Nicholas Fawcett
Technician

Clinton Greyn
Group Marshal Stike

Nej Adamson
Juan