Henry Fonda
The President
Walter Matthau
Prof. Groeteschele
Fritz Weaver
Col. Cascio
Larry Hagman
Buck
Frank Overton
Gen. Bogan
Edward Binns
Col. Jack Grady
Dan O'Herlihy
Brig. Gen. Warren A. Black
William Hansen
Defense Secretary Swenson
Russell Hardie
Gen. Stark
Janet Ward
Helen Grady
Dom DeLuise
TSgt. Collins
Russell Collins
Knapp
Sorrell Booke
Congressman Raskob
Nancy Berg
Ilsa Wolfe
John Connell
Thomas
Frank Simpson
Sullivan
Hildy Parks
Betty Black
Dana Elcar
Foster
Louise Larabee
Mrs. Cascio
Stewart Germain
Mr. Cascio
Geri Miller
Go-go Dancer (uncredited)
Charles Tyner
Jet Fighter Pilot (voice) (uncredited)
Frieda Altman
Jennie
Will Wright
Bit Part (uncredited)