Calificación
Reparto

Colin Baker
The Doctor

Bonnie Langford
Mel Bush

Michael Jayston
The Valeyard

Lynda Bellingham
The Inquisitor

Honor Blackman
Professor Sarah Lasky

Michael Craig
Commodore Travers

Denys Hawthorne
Rudge

Yolande Palfrey
Janet

Malcolm Tierney
Doland

David Allister
Bruchner

Tony Scoggo
Grenville

Arthur Hewlett
Kimber

Simon Slater
Edwardes

Sam Howard
Atza

Leon Davis
Ortezo

Hugh Beverton
First Guard