Ronny Cox
— Bob Steele
Billie Whitelaw
— Louise
Glynis Barber
— Beth
Ronald Lacey
— Wedderburn
Oscar Quitak
— Velatti
Jack Watson
— Donovan
Ronald Fraser
— Jenkins
Connie Mason
— Marsha
David Collings
— Major Greville
Benjamin Feitelson
— Fisher
Peter Arne
— Malen
Nicholas Donnelly
— Major Crawley
Royston Tickner
— Ted
Jesse Birdsall
— Naval Rating
Ian Collier
— Police Sergeant
Rose Power
— Mrs Martin
Peter Aldwyn
— Intelligence Officer
Ridgewell Hawkes
— MIlitary Police
Michael Chesden
— Receptionist