출연진
Jon Pertwee
The Doctor
Tom Baker
The Doctor
Elisabeth Sladen
Sarah Jane Smith
Nicholas Courtney
Brigadier Lethbridge-Stewart
Richard Franklin
Mike Yates
John Levene
Sergeant Benton
John Dearth
Lupton
Carl Forgione
Land
Andrew Staines
Keaver
Terence Lodge
Moss
Christopher Burgess
Barnes
John Kane
Tommy
Kevin Lindsay
Cho-Je
George Cormack
K'anpo
Cyril Shaps
Professor Clegg
Chubby Oates
Policeman
Pat Gorman
Soldier
Terry Walsh
Man with Boat
Michael Pinder
Hopkins
Stuart Fell
Tramp
Geoffrey Morris
Sabor