Peter Davison
The Doctor
Acting
Matthew Waterhouse
Adric
Acting
Sarah Sutton
Nyssa / Ann Talbot
Acting
Janet Fielding
Tegan Jovanka
Acting
Michael Cochrane
Lord Cranleigh
Acting
Barbara Murray
Lady Cranleigh
Acting
Gareth Milne
The Unknown / George Cranleigh
Crew
Moray Watson
Sir Robert Muir
Acting
Ivor Salter
Sergeant Markham
Acting
Andrew Tourell
Constable Cummings
Acting
Ahmed Khalil
Latoni
Acting
Brian Hawksley
Brewster
Acting
Timothy Block
Tanner
Acting