Roger Moore
Rufus Excalibur ffolkes

Anthony Perkins
Lou Kramer

James Mason
Admiral Brindsen

David Hedison
Robert King

Michael Parks
Harold Shulman

Jack Watson
Captain Olafson

David Wood
Terry Herring

Jeremy Clyde
Lord Privy Seal Dennis Tipping

George Baker
Fletcher

Faith Brook
British Prime Minister

John Westbrook
Dawnay

Jennifer Hilary
Sarah

John Lee
Captain Harry Phillips

Tim Bentinck
Harris

Sean Arnold
Schmidt

Eiji Kusuhara
Eiji

Angela Thorne
Woman on Train

Robert Swann
Miller

Richard Graydon
Rasmussen

Greg Powell
Fkolkes Assualt Team Member (uncredited)