Capt. Henry 'Hank' O'Hara
Charlton Heston
Angela Thacher
Yvette Mimieux
Lovejoy Wells
Leslie Uggams
Harold Shaw
Ross Elliott
Peter Lindner
Nicholas Hammond
Sam Allen
Mike Henry
William Reading
Jayson Kane
Passenger
Leoda Richards
Weber's mother
Lorna Thayer
Mrs. O'Hara
Maureen Connell
Air flight controller
John Hillerman
Cosmetic Salesgirl
Jenifer Shaw
Jerome K. Weber
James Brolin
Stanley Morris
Wesley Lau
Sgt. Ben Puzo
Claude Akins
Mrs. Clara Shaw
Jeanne Crain
Elly Brewster
Susan Dey
Gary Brown
Rosey Grier
Harriet Stevens
Mariette Hartley
Sen. Arne Lindner
Walter Pidgeon
John Bimonte
Ken Swofford
Director
John Guillermin
Screenplay
Stanley R. Greenberg
Novel
David Harper
Makeup Artist
Siegfried H. Gelke
Set Decoration
Charles Pierce
Hairstylist
Gloria Montemayor
Costume Design
Jack Bear
Original Music Composer
Perry Botkin Jr.
Art Direction
Edward C. Carfagno
Producer
Walter Seltzer
Associate Producer
James C. Pratt
Director of Photography
Harry Stradling Jr.
Editor
Robert Swink