Roger Moore as Rufus Excalibur ffolkes

Anthony Perkins as Lou Kramer

James Mason as Admiral Brindsen

David Hedison as Robert King

Michael Parks as Harold Shulman

Jack Watson as Captain Olafson

David Wood as Terry Herring

Jeremy Clyde as Lord Privy Seal Dennis Tipping

George Baker as Fletcher

Faith Brook as British Prime Minister

Lea Brodie as Sanna

Anthony Pullen Shaw as Robert F. Ackerman

John Westbrook as Dawnay

Jennifer Hilary as Sarah

John Lee as Captain Harry Phillips

Brook Williams as Helicopter Pilot

Tim Bentinck as Harris

Sean Arnold as Schmidt

Eric Mason as Stallemo

Saburô Kimura as Saburo

Eiji Kusuhara as Eiji

Angela Thorne as Woman on Train

Martin Matthews as Man on Train

Jonathan Newth as Kirk

Robert Swann as Miller

Richard Graydon as Rasmussen

George Leech as Magnussen

Thane Bettany as Heyerdal

Dinny Powell as Member of ffolkes Assault Team (uncredited)

David Ashford as Cab Driver (uncredited)

Greg Powell as Fkolkes Assualt Team Member (uncredited)

Barrie Holland as American Oilman (uncredited)