Calificación
Reparto

Tom Baker
The Doctor

Elisabeth Sladen
Sarah Jane Smith

Milton Johns
Guy Crayford

Peter Welch
Morgan

Martin Friend
Styggron

Max Faulkner
Cpl. Adams

Dave Carter
Grierson

Ian Marter
Harry Sullivan

Roy Skelton
Chedaki

John Levene
RSM Benton

Stuart Fell
Kraal

Patrick Newell
Col. Faraday

Hugh Lund
Matthews

Heather Emmanuel
Tessa