 Henry FondaRobert Leffingwell | Robert Leffingwell |
 Charles LaughtonSenator Seabright Cooley | Senator Seabright Cooley |
 Don MurraySenator Brigham Anderson | Senator Brigham Anderson |
 Walter PidgeonSenate Majority Leader | Senate Majority Leader |
 Peter LawfordSenator Lafe Smith | Senator Lafe Smith |
 Gene TierneyDolly Harrison | Dolly Harrison |
 Franchot ToneThe President | The President |
 Lew AyresThe Vice President | The Vice President |
 Burgess MeredithHerbert Gelman | Herbert Gelman |
 Eddie HodgesJohnny Leffingwell | Johnny Leffingwell |
 Paul FordSenator Stanley Danta | Senator Stanley Danta |
 George GrizzardSenator Fred van Ackerman | Senator Fred van Ackerman |
 Inga SwensonEllen Anderson | Ellen Anderson |
 Frank SinatraSelf (voice) | Self (voice) |
 Edward AndrewsSenator Orrin Knox | Senator Orrin Knox |
 Paul McGrathHardiman Fletcher | Hardiman Fletcher |
 Will GeerSenate Minority Leader | Senate Minority Leader |
 Betty WhiteSenator Bessie Adams | Senator Bessie Adams |
 Tom HelmoreBritish Ambassador | British Ambassador |
| RRene PaulFrench Ambassador | French Ambassador |
 Paul StevensLouis Newborn | Louis Newborn |
 Russ BrownNight Watchman Mike | Night Watchman Mike |
 Malcolm AtterburySenator Tom August | Senator Tom August |
| JJanet Jane CartyPidge Anderson | Pidge Anderson |
| HHilary EavesLady Maudulayne | Lady Maudulayne |
 Michele MontauCelestine Barre | Celestine Barre |
| JJ. Edward McKinleySenator Powell Hanson | Senator Powell Hanson |
 Bill QuinnSenator Paul Hendershot | Senator Paul Hendershot |
| TTiki SantosSenator Kanaho | Senator Kanaho |
| RRaoul De LeonSenator Velez | Senator Velez |
