On screen
Cast
16 credited performers
Tom Baker
The Doctor
Mary Tamm
Romana
John Leeson
K-9 (voice)
John Woodvine
Marshal
Lalla Ward
Princess Astra
Davyd Harries
Shapp
Artwork unavailable
Ian Saynor
Merak
Artwork unavailable
Ian Liston
'Hero'
Susan Skipper
'Heroine'
John Cannon
Guard
Artwork unavailable
Iain Armstrong
Technician
Artwork unavailable
Pat Gorman
Pilot
Artwork unavailable
Harry Fielder
Guard
William Squire
The Shadow
Barry Jackson
Drax
Valentine Dyall
The Black Guardian