Jon Pertwee

The Doctor

Tom Baker

The Doctor

Elisabeth Sladen

Sarah Jane Smith

Nicholas Courtney

Brigadier Lethbridge-Stewart

Richard Franklin

Mike Yates

John Levene

Sergeant Benton

Cyril Shaps

Professor Clegg

Pat Gorman

Soldier

Gareth Hunt

Arak

Jenny Laird

Neska

Max Faulkner

Guard Captain