Sylvester McCoy

The Doctor

Sophie Aldred

Ace

Kevin Eldon

Antimony

Leonard Fenton

Casmus

John Sessions

General Tannis

Stephen Fry

The Minister of Chance

Jon Culshaw

Golcrum / Senator Hawk / President

Dave Hill

Nessican

Anthony Stewart Head

Saint Valentine

Jacqueline Pearce

Admiral Mettna

Michael Yale

Lieutenant Suneel

Robert Rietti

Premier Bedloe

Nicholas Courtney

The Brigadier

Emma Ferguson

Magan

David Soul

Mission Control

Julienne Davis

Computer