Jason Robards character Admiral James Sandecker
Richard Jordan character Dirk Pitt
David Selby character Dr. Gene Seagram
Anne Archer character Dana Archibald
Alec Guinness character John Bigalow
Bo Brundin character Captain Prevlov
M. Emmet Walsh character Master Chief Vinnie Walker
J.D. Cannon character Captain Joe Burke
Norman Bartold character Admiral Kemper
Elya Baskin character Marganin
Dirk Blocker character Merker
Robert Broyles character Willis
Paul Carr character CIA Director Nicholson
Michael C. Gwynne character Bohannon
Harvey Lewis character Kiel
Charles Macaulay character General Dale Busby
Stewart Moss character Koplin
Michael Pataki character Munk
Marvin Silbersher character Soviet Ambassador Antonov
Mark L. Taylor character Spence
Maurice Kowalewski character Dr. Silverstein
Nancy Nevinson character Sarah Martindale
Sander Vanocur character Commentator
Michael Ensign character Lieutenant Northacker
Hilly Hicks character Woodson
Clive Cussler character Bearded Reporter (uncredited)