On screen
Cast
22 credited performers
Jon Pertwee
The Doctor
Katy Manning
Jo Grant
Nicholas Courtney
Brigadier Lethbridge-Stewart
John Levene
Sergeant Benton
Richard Franklin
Captain Mike Yates
Stewart Bevan
Cliff Jones
Jerome Willis
Stevens
Tony Adams
Elgin
Ben Howard
Hinks
Artwork unavailable
Mostyn Evans
Dai Evans
Artwork unavailable
Talfryn Thomas
Dave
Artwork unavailable
Roy Evans
Bert
Artwork unavailable
Mitzi McKenzie
Nancy
Artwork unavailable
Ray Handy
Milkman
Artwork unavailable
John Scott Martin
Hughes
Artwork unavailable
John Rolfe
Fell
John Dearth
BOSS (voice)
Artwork unavailable
Richard Beale
Minister of Ecology
Artwork unavailable
Jean Burgess
Cleaner
Artwork unavailable
Brian Justice
Yates' Guard
Terry Walsh
Guard
Roy Skelton
James