Peter Davison
The Doctor
Acting
Sarah Sutton
Nyssa
Acting
Janet Fielding
Tegan Jovanka
Acting
Mark Strickson
Vislor Turlough
Acting
Nicholas Courtney
Brigadier Alistair Gordon Lethbridge-Stewart
Acting
Valentine Dyall
The Black Guardian
Acting
David Collings
Mawdryn
Acting
Angus MacKay
Headmaster
Acting
Stephen Garlick
Ibbotson
Acting
Roger Hammond
Dr. Runciman
Acting
Sheila Gill
Matron
Acting
Peter Walmsley
Mutant
Acting
Brian Darnley
Mutant
Acting
William Hartnell
The Doctor (1) (archive footage)
Acting
Patrick Troughton
The Doctor (2) (archive footage)
Acting
Jon Pertwee
The Doctor (3) (archive footage)
Acting
Tom Baker
The Doctor (4) (archive footage)
Acting
Roger Delgado
The Master (archive footage) (Special Edition)
Acting
Michael Kilgarriff
K1 Robot (archive footage)
Acting
Stanley Mason
Bok (archive footage) (Special Edition)
Acting
Stephen Thorne
Omega (archive footage) (Special Edition)
Acting
John Woodnutt
Duke of Forgill/Broton (archive footage) (Special Edition)
Acting