Buddy Ebsen
— Vice President Kermit Madigan
Peter Graves
— Mark Jones
Arthur Kennedy
— Gunther Damon
Raymond Massey
— Secretary of State Freeman Sharkey
Mercedes McCambridge
— Hester Madigan
Rip Torn
— George Oldenburg
Louise Sorel
— Joanna Spencer
James Wainwright
— Gen. Dunbar
Dabney Coleman
— Sen. Bert Haines
Joseph Campanella
— Col. Doug Henderson
Richard Eastham
— Gen. Colton
Jim B. Smith
— Maj. Earl Foster
Tod Andrews
— President Jeremy Haines
Maida Severn
— Judy Nance
Ivan Bonar
— Colonel to Dunbar
Gary Haynes
— Rod Pitcher
Patty Bodeen
— Girl in Desert
Robert Reiser
— Boy in Desert
Byron Morrow
— Adm. Phillips
Bill Walker
— Thomas
Richard Bull
— First Controller
Vernon Weddle
— Second Controller
Hoke Howell
— Control Supervisor
Richard Stahl
— Dentist
Gil Peterson
— Tower Controller
Dale Tarter
— Airman
James W. Gavin
— Helicopter Pilot
Barry Cahill
— Ground Crew Chief
Lillian Lehman
— Genesse
James B. Sikking
— Aide to Dunbar