Jon Pertwee

The Doctor

Patrick Troughton

The Doctor

William Hartnell

The Doctor

Katy Manning

Jo Grant

Nicholas Courtney

Brigadier Lethbridge-Stewart

John Levene

Sergeant Benton

Stephen Thorne

Omega

Rex Robinson

Doctor Tyler

Roy Purcell

President of the Council

Laurie Webb

Mr. Ollis

Clyde Pollitt

Chancellor

Graham Leaman

Time Lord

Patricia Prior

Mrs. Ollis

Denys Palmer

Corporal Palmer

Lennie Mayne