출연진
William Hartnell
The Doctor
Carole Ann Ford
Susan Foreman
Jacqueline Hill
Barbara Wright
William Russell
Ian Chesterton
Stephen Dartnell
John
Ilona Rodgers
Carol
Lorne Cossette
Maitland
John Bailey
Commander
Martyn Huntley
First Human
Giles Phibbs
Second Human
Ken Tyllsen
First Sensorite / First Scientist
Joe Greig
Second Sensorite / Second Scientist / Warrior
Peter Glaze
Third Sensorite / City Administrator
Arthur Newall
Fourth Sensorite
Eric Francis
First Elder
Bartlett Mullins
Second Elder
Anthony Rogers
Sensorite
Gerry Martin
Sensorite