| Person | Type | Job | Role(s) |
|---|---|---|---|
 Adele Parmenter | Crew | Costume & Make-Up | Wardrobe Supervisor |
Allen Drury | Crew | Writing | Novel, Technical Advisor |
David De Silva | Crew | Production | Production Assistant |
Del Armstrong | Crew | Costume & Make-Up | Makeup Artist |
Don Kranze | Crew | Directing | Assistant Director |
Eli Benneche | Crew | Art | Set Decoration |
Emil Oster | Crew | Camera | Camera Operator |
Florence Nerlinger | Crew | Production | Production Secretary |
 Frank Sinatra | Crew | Sound | Songs |
Harold Lewis | Crew | Sound | Sound |
Henry Weinberger | Crew | Production | Unit Manager |
Hope Bryce | Crew | Costume & Make-Up | Costume Coordinator |
Jack McEdward | Crew | Production | Production Manager |
James Almond | Crew | Lighting | Gaffer |
Jerry Fielding | Crew | Sound | Original Music Composer |
Joe King | Crew | Costume & Make-Up | Wardrobe Supervisor |
Josh Weiner | Crew | Camera | Still Photographer |
Kathleen Fagan | Crew | Directing | Script Supervisor |
Larry Powell | Crew | Directing | Assistant Director |
Lee Osborne | Crew | Sound | Music Editor |
Leon Birnbaum | Crew | Sound | Sound Effects Editor |
Louis R. Loeffler | Crew | Editing | Editor |
 Lyle R. Wheeler | Crew | Art | Production Design |
Max Slater | Crew | Production | Producer's Assistant |
Morris Rosen | Crew | Camera | Key Grip |
Murray Spivack | Crew | Sound | Sound Recordist |
Myrl Stoltz | Crew | Costume & Make-Up | Hairstylist |
 Otto Preminger | Crew | Directing | Director, Producer |
Robert Jiras | Crew | Costume & Make-Up | Makeup Artist |
Sam Leavitt | Crew | Camera | Director of Photography |
 Saul Bass | Crew | Art | Main Title Designer |
Saul Midwall | Crew | Camera | Camera Operator |
 Wendell Mayes | Crew | Writing | Screenplay |
 Loring Mandel | Crew | Writing | Theatre Play |
Al St. Hilaire | Crew | Camera | Still Photographer |
Michael Harte | Crew | Costume & Make-Up | Wardrobe Supervisor |
Ned Washington | Crew | Writing | Lyricist |
L. V. McCardle Jr. | Crew | Directing | First Assistant Director |
Bill Blass | Crew | Costume & Make-Up | Costume Designer |
Charles Bohart | Crew | Directing | Assistant Director |
William Hamilton | Crew | Sound | Sound |
Arnold Pine | Crew | Art | Construction Manager |
 Betty White | Cast | Actress | Senator Bessie Adams |
 Bill Quinn | Cast | Actor | Senator Paul Hendershot |
Brandon Beach | Cast | Actor | Senator (uncredited) |
 Burgess Meredith | Cast | Actor | Herbert Gelman |
 Cay Forester | Cast | Actress | President's Secretary (uncredited) |
 Charles Laughton | Cast | Actor | Senator Seabright Cooley |
Chet Stratton | Cast | Actor | Rev. Carney Birch |
Clive Halliday | Cast | Senator (uncredited) | |
Dick Ryan | Cast | Actor | Senator (uncredited) |
 Don Murray | Cast | Actor | Senator Brigham Anderson |
 Eddie Baker | Cast | Actor | Senator (uncredited) |
 Eddie Hodges | Cast | Actor | Johnny Leffingwell |
 Edward Andrews | Cast | Actor | Senator Orrin Knox |
 Franchot Tone | Cast | Actor | The President |
Frank Sinatra | Cast | Actor | Self (voice) |
 Gene Tierney | Cast | Actress | Dolly Harrison |
 George DeNormand | Cast | Actor | Senator (uncredited) |
 George Grizzard | Cast | Actor | Senator Fred van Ackerman |
 Hal Taggart | Cast | Actor | Senator (uncredited) |
 Harold Miller | Cast | Actor | Senate Official (uncredited) |
Harry Denny | Cast | Senator (uncredited) | |
 Henry Fonda | Cast | Actor | Robert Leffingwell |
Henry Fountain Ashurst | Cast | Senator McCafferty | |
Hilary Eaves | Cast | Lady Maudulayne | |
 Inga Swenson | Cast | Actress | Ellen Anderson |
Irv Kupcinet | Cast | Journalist #1 | |
 J. Edward McKinley | Cast | Actor | Senator Powell Hanson |
 Jeffrey Sayre | Cast | Actor | Senate Staff Clerk (uncredited) |
John Granger | Cast | Ray Shaff | |
John Roy | Cast | Actor | Reporter (uncredited) |
 Kenner G. Kemp | Cast | Actor | Senate Chamber Reporter (uncredited) |
 Larry Tucker | Cast | Actor | Manuel |
 Leoda Richards | Cast | Actress | Senator (uncredited) |
 Leon Alton | Cast | Actor | Senator (uncredited) |
 Lew Ayres | Cast | Actor | The Vice President |
 Malcolm Atterbury | Cast | Actor | Senator Tom August |
 Michele Montau | Cast | Actress | Celestine Barre |
Paul Cristo | Cast | Actor | Senate Gallery Spectator (uncredited) |
 Paul Ford | Cast | Actor | Senator Stanley Danta |
 Paul McGrath | Cast | Actor | Hardiman Fletcher |
Paul Power | Cast | Actor | Senator (uncredited) |
 Paul Stevens | Cast | Actor | Louis Newborn |
 Peter Lawford | Cast | Actor | Senator Lafe Smith |
Raj Mallick | Cast | Indian Ambassador | |
Raoul De Leon | Cast | Senator Velez | |
Rene Paul | Cast | French Ambassador | |
 Roger Clark | Cast | Actor | Senator (uncredited) |
 Russ Brown | Cast | Actor | Night Watchman Mike |
Stephen Soldi | Cast | Senate Gallery Spectator (uncredited) | |
Tiki Santos | Cast | Senator Kanaho | |
 Tom Helmore | Cast | Actor | British Ambassador |
Walter Bacon | Cast | Senator (uncredited) | |
 Walter Pidgeon | Cast | Actor | Senate Majority Leader |
 Walter Reed | Cast | Actor | Senate Staff Clerk (uncredited) |
 Will Geer | Cast | Actor | Senate Minority Leader |
William Meader | Cast | Actor | Senator (uncredited) |
George Ford | Cast | Senator (uncredited) | |
Janet Jane Carty | Cast | Pidge Anderson | |
Meyer Davis | Cast | Orchestra Conductor | |
 Sol Murgi | Cast | Senator (uncredited) | |
Betty Murray | Cast | Actress | Senator Lafe Smith's Girlfriend |
 Bernard Sell | Cast | Actor | Senator (uncredited) |
 Sid Gould | Cast | Actor | Bartender |
Norman Papson | Cast | Gay Bar Patron (uncredited) | |
Joseph La Cava | Cast | Actor | Senator (uncredited) |
Charles Perry | Cast | Actor | Senate Gallery Spectator (uncredited) |
Al McGranary | Cast | Senator (uncredited) | |
Clark Ross | Cast | Actor | Senator (uncredited) |
Bobby Gilbert | Cast | Senator (uncredited) | |
Wayne Tucker | Cast | Actor | Journalist (uncredited) |
Polly Guggenheim | Cast | Washington Socialite (uncredited) | |
Harty Wadsworth | Cast | Washington Party Guest (uncredited) | |
Helen Hardin | Cast | Washington Socialite (uncredited) | |
Marion Lloyd Stearns White | Cast | Washington Party Guest (uncredited) | |
Byron White | Cast | Washington Party Guest (uncredited) | |
Mario Cimino | Cast | Senator (uncredited) | |
Guy M. Gillette | Cast | Senator Harper | |
Allan W. Cromley | Cast | Journalist #6 | |
Jesse Stearns Buscher | Cast | Journalist #4 | |
William Knighton | Cast | WHCA President | |
Jerry Wadsworth | Cast | Washington Party Guest (uncredited) | |
Virgil Johansen | Cast | Senator (uncredited) | |
Joe Baird | Cast | Senator (uncredited) | |
Alan Emory | Cast | Journalist #3 | |
Henry Jackson | Cast | Drink Refuser (uncredited) | |
Carlisle Runge | Cast | Washington Party Guest (uncredited) | |
Milton Berliner | Cast | Journalist #5 | |
Louis Scheyven | Cast | Washington Party Guest (uncredited) | |
Robert C. Wilson | Cast | Journalist #2 | |
| Person | Type | Job | Role(s) |
