Sean Connery character Dr. Paul Bradley
Karl Malden character Harry Sherwood, NASA
Henry Fonda character The President
Brian Keith character Dr. Alexei Dubov
Natalie Wood character Tatiana Nikolaevna Donskaya
Trevor Howard character Sir Michael Hughes
Martin Landau character Major General Adlon
Richard Dysart character Secretary of Defense
Joseph Campanella character General Easton
Bo Brundin character Rolf Manheim
Katherine De Hetre character Jan Watkins
James G. Richardson character Alan Marshall
Roger Robinson character Bill Hunter
Michael Zaslow character Sam Mason
John Findlater character Astronaut Tom Easton
Paul Tulley character Astronaut Bill Frager
Allen Williams character Astronaut Michael McKendrick
Bibi Besch character Helen Bradley
Gregory Gaye character Russian Premier
Clyde Kusatsu character Yamashiro
Burke Byrnes character Coast Guard Officer
Joe Medalis character Bartender
Charles Bartlett character Guard
Raymond O'Keefe character Guard
Henry Olek character Army Translator
Peter Bourne character U.N. President
Stanley Mann character Canadian Representative
Ronald Neame character British Representative
Philip Sterling character Russian Representative
Arthur Adams character Ghana Representative
Fred Carney character United States Representative
Sybil Danning character Girl Skier
Meschino Paterlini character Boy Skier
Joe Yune character Siberian Man
Eileen Saki character Siberian Woman
Christine Anne Baur character Communications Center Technician (as Chris Baur)
Paul Camen character Communications Center Technician
Dorothy Catching character Communications Center Technician
Bill Couch character Communications Center Technician
William Darr character Communications Center Technician
Joan Foley character Communications Center Technician
Paul Laurence character Communications Center Technician
John Moio character Communications Center Technician
Read Morgan character Communications Center Technician
Conrad E. Palmisano character Communications Center Technician
Tony Rocco character Communications Center Technician
Jesse Wayne character Communications Center Technician
Carole Hemingway character Sherwood's Secretary
Clete Roberts character Network Newscaster
Stu Nahan character Football Announcer
Osman Ragheb character Swiss TV Newscaster
Yu Wing character Chinese Fisherman
Yau Tsui Ling character Chinese Fisherman's Wife
Rick Slaven character Canteen Worker
James Bacon character News Reporter
Yani Begakis character News Reporter
Selma Archerd character Woman in Subway
Domingo Ambriz character Boy with Radio
Peter Donat character Opening Sequence Narrator (voice)
Simon Cadell character British News Reporter (uncredited)
John McKinney character Peter Watson
