The President
Henry Fonda
Prof. Groeteschele
Walter Matthau
TSgt. Collins
Dom DeLuise
Knapp
Russell Collins
Congressman Raskob
Sorrell Booke
Ilsa Wolfe
Nancy Berg
Thomas
John Connell
Sullivan
Frank Simpson
Betty Black
Hildy Parks
Foster
Dana Elcar
Mrs. Cascio
Louise Larabee
Mr. Cascio
Stewart Germain
Col. Cascio
Fritz Weaver
Go-go Dancer (uncredited)
Geri Miller
Jet Fighter Pilot (voice) (uncredited)
Charles Tyner
Jennie
Frieda Altman
Bit Part (uncredited)
Will Wright
Buck
Larry Hagman
Gen. Bogan
Frank Overton
Col. Jack Grady
Edward Binns
Brig. Gen. Warren A. Black
Dan O'Herlihy
Defense Secretary Swenson
William Hansen
Gen. Stark
Russell Hardie
Helen Grady
Janet Ward
Assistant Director
Harry Falk
Screenplay
Walter Bernstein
Director
Sidney Lumet
Executive Producer
Novel
Eugene Burdick
Harvey Wheeler
Producer
Max E. Youngstein
Charles H. Maguire
Director of Photography
Gerald Hirschfeld
Editor
Ralph Rosenblum
Art Direction
Albert Brenner
Set Decoration
J.C. Delaney
Costume Design
Anna Hill Johnstone
Sound Editor
Jack Fitzstephens
Sound mixer
William Swift
Makeup Department Head
Bill Herman
Camera Operator
Albert Taffet
Script