The Doctor Sylvester McCoy
Ace Sophie Aldred
Antimony Kevin Eldon
Golcrum/Senator Hawk/President Jon Culshaw
Admiral Mettna Jacqueline Pearce
Casmus Leonard Fenton
The Minister of Chance Stephen Fry
Senator Sala Britta Gartner
General Tannis John Sessions
St Valentine Anthony Stewart Head
Nessican Dave Hill
Dr Cain Charlotte Palmer
Speedwell Stephen Brody
Campion Gareth Jones
Captain Carne Andrew McGibbon
Lieutenant Suneel Michael Yale
The Kingmaker Peggy Batchelor
Pilot David Evans
Premier Bedloe Robert Rietti
Computer Julienne Davis
Megan Emma Ferguson
Man - Richard Garaghty
President of Santiny Huw Thomas
Mission Control - David Soul
Major Bander/Prime Minister Nick Romero
The Brigadier Nicholas Courtney