Peter Davison
The Doctor
Acting
Matthew Waterhouse
Adric
Acting
Sarah Sutton
Nyssa
Acting
Janet Fielding
Tegan Jovanka
Acting
Anthony Ainley
The Master / The Portreeve
Acting
Dallas Cavell
Head of Security
Acting
Frank Wylie
Ruther
Acting
Derek Waring
Shardovan
Acting
Michael Sheard
Mergrave
Acting
Souska John
Child
Acting
Tom Baker
The Doctor (archive footage)
Acting
Adrian Gibbs
The Watcher (archive footage)
Acting