Frank Lansing
Donald Sutherland
Heddi Lindquist
Vanessa Redgrave
Marine Technician
August Schellenberg
Laboratory Assistant
Candace O'Connor
Meteorological Assistant
Joseph Golland
Technician (Tommy)
Bruce Greenwood
Radio Operator
Richard Wren
Larsen
Hagan Beggs
Ship's Captain
Michael Collins
Ship's Radio Operator
Robert Stelmach
Helicopter Crewman
Terry Waterhouse
Cook
Mark Jones
Otto Gerran
Richard Widmark
Lechinski
Christopher Lee
Judith Rubin
Barbara Parkins
Smithy
Lloyd Bridges
Paul Hartman
Lawrence Dane
Inge Van Zipper
Patricia Collins
Heyter
Michael J. Reynolds
Jungbeck
Nicholas Cortland
Novel
Alistair MacLean
Stunt Coordinator
Vic Armstrong
Director
Don Sharp
Screenplay
Still Photographer
David Appleby
Producer
Peter Snell
Original Music Composer
Robert Farnon
Director of Photography
Alan Hume
Editor
Tony Lower
Additional Writing
Murray Smith
David Butler
Associate Producer
William Hill
Casting
Stuart Aikins
Production Design
Harry Pottle
Art Direction
Kenneth Ryan
Peter Childs