
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]()
Gareth Milne
The Unknown / George Cranleigh
Crew

Moray Watson
Sir Robert Muir
Acting

Ivor Salter
Sergeant Markham
Acting
![Andrew Tourell]()
Andrew Tourell
Constable Cummings
Acting
![Brian Hawksley]()
Brian Hawksley
Brewster
Acting
![Timothy Block]()
Timothy Block
Tanner
Acting