Ferdinand Waldo Demara Jr. / Martin Donner / Dr. Gilbert / Ben. W. Stone / Dr. Joseph Mornay / Robert Boyd Hammnd
Tony Curtis
Father Devlin
Karl Malden
Cardinal
Larry Gates
Clifford Thompson
Mike Kellin
Barney
Frank Gorshin
WAC Lieutenant
Cindi Wood
Hotchkiss (as Richard Sargeant)
Dick Sargent
Fred Demara Jr. (as Robert Crawford)
Robert Crawford Jr.
Farmer Hauling Fertilizer
Doodles Weaver
Lieutenant Commander Howard - HMCS Cayuga
Ward Ramsey
Dr. Hammond
David White
Capt. Hun Kim
Philip Ahn
Capt. Glover - HMCS Cayuga
Edmond O'Brien
Senior Officer
Herbert Rudley
Defense Lieutenant
Jerry Paris
Dr. Joseph Mornay
Harry Carey, Jr.
Lt. Thornton
Willard Sage
Sgt. Wilkerson (uncredited)
Russ Conway
Sailor (uncredited)
James Dobson
State Official (uncredited)
Richard Gaines
Highway Patrol Officer (uncredited)
Bob Herron
Reporter (uncredited)
Herbert Lytton
Tirdell (uncredited)
Frank Maxwell
Warden J.B. Chandler
Arthur O'Connell
Soldier (uncredited)
Michael Ford
RCN Chief (uncredited)
Dan Sheridan
Pa Demara
Gary Merrill
Lt. Catherine Lacey
Joan Blackman
Abbott Donner
Raymond Massey
R.C. Brown
Robert Middleton
Ma Demara
Jeanette Nolan
Eulalie Chandler
Sue Ane Langdon
Music
Henry Mancini
Director
Robert Mulligan
Makeup Artist
Bud Westmore
Director of Photography
Robert Burks
Art Direction
Henry Bumstead
Sound
Frank H. Wilkinson
Music Supervisor
Joseph Gershenson
Assistant Director
Joseph E. Kenney
Screenplay
Liam O'Brien
Hairstylist
Larry Germain
Waldon O. Watson
Novel
Robert Crichton
Producer
Robert Arthur
Set Decoration
Julia Heron
Alexander Golitzen
Editor
Frederic Knudtson