cast
- Henry Fonda
- Robert Leffingwell
- Charles Laughton
- Sen. Seabright "Seab" Cooley
- Don Murray
- Sen. Brigham Anderson
- Walter Pidgeon
- Sen. Bob Munson
- Gene Tierney
- Dolly Harrison
- Peter Lawford
- Sen. Lafe Smith
- Inga Swenson
- Ellen Anderson
- Lew Ayres
- The Vice-President
- Burgess Meredith
- Herbert Gelman
- George Grizzard
- Sen. Fred Van Ackerman
- Paul Ford
- Sen. Stanley Danta
- Franchot Tone
- The President
- Hilary Eaves
- Lady Maudulayne
- Malcolm Atterbury
- Sen. Tom August
- J. Edward McKinley
- Sen. Hanson
- Cay Forrester
- President's Secretary
- Edward Andrews
- Sen. Orrin Knox
- Eddie Hodges
- Johnny Leffingwell
- Michele Montau
- Celestine Barre
- Sid Gould
- Bartender
- Rene Paul
- French Ambassador
- Bill Quinn
- Sen. Hendershot
- Betty White
- Sen. Bessie Adams
- Russ Brown
- Nightwatchman
- Tom Helmore
- British Ambassador
- Chet Stratton
- Rev. Birch
- Will Geer
- Senate Minority Leader
- Paul McGrath
- Hardiman Fletcher
- Raoul de Leon
- Sen. Velez
crew
- Otto Preminger
- Director, Producer
- Allen Drury
- Book Author
- Wendell Mayes
- Screenwriter
- Sam Leavitt
- Cinematographer
- Jerry Fielding
- Composer (Music Score)
- Louis Loeffler
- Editor
- Lyle Wheeler
- Production Designer
- Eli Benneche
- Set Designer
- Hope Bryce
- Costume Designer
- Harold Lewis
- Sound/Sound Designer
- Willaim Hamilton
- Sound/Sound Designer
- Del Armstrong
- Makeup
- Robert Jiras
- Makeup
