Henry Fonda
Robert Leffingwell
Charles Laughton
Senator Seabright Cooley
Don Murray
Senator Brigham Anderson
Walter Pidgeon
Senate Majority Leader
Peter Lawford
Senator Lafe Smith
Gene Tierney
Dolly Harrison
Franchot Tone
The President
Lew Ayres
The Vice President
Burgess Meredith
Herbert Gelman
Eddie Hodges
Johnny Leffingwell
Paul Ford
Senator Stanley Danta
George Grizzard
Senator Fred van Ackerman
Inga Swenson
Ellen Anderson
Frank Sinatra
Self (voice)
Edward Andrews
Senator Orrin Knox
Paul McGrath
Hardiman Fletcher
Will Geer
Senate Minority Leader
Betty White
Senator Bessie Adams
Tom Helmore
British Ambassador
Rene Paul
French Ambassador
Paul Stevens
Louis Newborn
Russ Brown
Night Watchman Mike
Malcolm Atterbury
Senator Tom August
Janet Jane Carty
Pidge Anderson
Hilary Eaves
Lady Maudulayne
Michele Montau
Celestine Barre
J. Edward McKinley
Senator Powell Hanson
Bill Quinn
Senator Paul Hendershot
Tiki Santos
Senator Kanaho
Raoul De Leon
Senator Velez
Chet Stratton
Rev. Carney Birch
Larry Tucker
Manuel
Betty Murray
Senator Lafe Smith's Girlfriend
John Granger
Ray Shaff
Sid Gould
Bartender
Meyer Davis
Orchestra Conductor
Irv Kupcinet
Journalist #1
Robert C. Wilson
Journalist #2
Alan Emory
Journalist #3
Jesse Stearns Buscher
Journalist #4
Milton Berliner
Journalist #5
Allan W. Cromley
Journalist #6
William Knighton
WHCA President
Guy M. Gillette
Senator Harper
Henry Fountain Ashurst
Senator McCafferty
Raj Mallick
Indian Ambassador
Leon Alton
Senator (uncredited)
Walter Bacon
Senator (uncredited)
Joe Baird
Senator (uncredited)
Eddie Baker
Senator (uncredited)
Brandon Beach
Senator (uncredited)
Mario Cimino
Senator (uncredited)
Roger Clark
Senator (uncredited)
Paul Cristo
Senate Gallery Spectator (uncredited)
Harry Denny
Senator (uncredited)
George DeNormand
Senator (uncredited)
George Ford
Senator (uncredited)
Cay Forester
President's Secretary (uncredited)
Bobby Gilbert
Senator (uncredited)
Polly Guggenheim
Washington Socialite (uncredited)
Clive Halliday
Senator (uncredited)
Helen Hardin
Washington Socialite (uncredited)
Henry Jackson
Drink Refuser (uncredited)
Virgil Johansen
Senator (uncredited)
Kenner G. Kemp
Senate Chamber Reporter (uncredited)
Joseph La Cava
Senator (uncredited)
Evelyn Lincoln
Washington Party Guest (uncredited)
Al McGranary
Senator (uncredited)
William Meader
Senator (uncredited)
Harold Miller
Senate Official (uncredited)
Sol Murgi
Senator (uncredited)
Norman Papson
Gay Bar Patron (uncredited)
Charles Perry
Senate Gallery Spectator (uncredited)
Paul Power
Senator (uncredited)
Walter Reed
Senate Staff Clerk (uncredited)
Leoda Richards
Senator (uncredited)
Clark Ross
Senator (uncredited)
John Roy
Reporter (uncredited)
Carlisle Runge
Washington Party Guest (uncredited)
Dick Ryan
Senator (uncredited)
Jeffrey Sayre
Senate Staff Clerk (uncredited)
Louis Scheyven
Washington Party Guest (uncredited)
Bernard Sell
Senator (uncredited)
Stephen Soldi
Senate Gallery Spectator (uncredited)
Marion Lloyd Stearns White
Washington Party Guest (uncredited)
Hal Taggart
Senator (uncredited)
Wayne Tucker
Journalist (uncredited)
Harty Wadsworth
Washington Party Guest (uncredited)
Jerry Wadsworth
Washington Party Guest (uncredited)
Byron White
Washington Party Guest (uncredited)
