Jon Pertwee
The Doctor
Caroline John
Liz Shaw
Nicholas Courtney
Brigadier Lethbridge-Stewart
Hugh Burden
Channing
Hamilton Dyce
Major General Scobie
Neil Wilson
Seeley
John Breslin
Captain Munro
John Woodnutt
Hibbert
Antony Webb
Dr. Henderson
Talfryn Thomas
Mullins
Derek Smee
Ransome