Trailer
Images
 | James Stewart as Jefferson Smith |
 | Jean Arthur as Clarissa Saunders |
 | Claude Rains as Joseph Paine |
 | Edward Arnold as Jim Taylor |
 | Guy Kibbee as Governor Hopper |
 | Thomas Mitchell as Diz Moore |
 | Eugene Pallette as Chick McGann |
 | Beulah Bondi as Ma Smith |
 | H.B. Warner as Senate Majority Leader |
 | Harry Carey as President of the Senate |
 | Astrid Allwyn as Susan Paine |
 | Ruth Donnelly as Emma Hopper |
 | Grant Mitchell as Senator MacPherson |
 | Porter Hall as Senator Monroe |
 | Pierre Watkin as Senator Barnes |
 | Charles Lane as Nosey |
 | William Demarest as Bill Griffith |
 | Dick Elliott as Carl Cook |
 | Billy Watson as Peter Hopper |
 | Delmar Watson as Jimmie Hopper |
 | John Russell as Hopper Boy |
| Harry Watson as Hopper Boy |
| Garry Watson as Hopper Boy |
 | Larry Simms as Hopper Boy |
| H.V. Kaltenborn as Radio Broadcaster |
 | Russell Simpson as Kenneth Allen (uncredited) |
 | Frances Gifford as Hopper Girl (uncredited) |
| Colin James Mackey as Narrator (uncredited) |
| Wilson Benge as Hopper's Butler (uncredited) |
 | Dickie Jones as Richard Jones (uncredited) |
 | Erville Alderson as Handwriting Expert (uncredited) |
 | Frank Puglia as Handwriting Expert (uncredited) |
 | Maurice Cass as Handwriting Expert (uncredited) |
 | Stanley Andrews as Senator Hodges (uncredited) |
 | Al Bridge as Senator Dwight (uncredited) |
 | Edwin August as Senator (uncredited) |
 | Edmund Cobb as Senator Gower (uncredited) |
 | Sam Ash as Senator Lancaster (uncredited) |
| Harry A. Bailey as Senator Hammett (uncredited) |
| Stanley Mack as Senator (uncredited) |
 | Brooks Benedict as Senate Clerk (uncredited) |
 | Wade Boteler as Family Man (uncredited) |
 | Dorothy Comingore as Woman at Station (uncredited) |
 | Chester Conklin as Reporter (uncredited) |
 | Gino Corrado as Barber (uncredited) |
 | Ann Doran as Paine's Secretary (uncredited) |
 | Robert Emmett Keane as Editor (uncredited) |
 | Matt McHugh as Reporter (uncredited) |
| Kathryn Bates as Committeewoman (uncredited) |
 | Frank Austin as Inventor (uncredited) |
| William Arnold as Reporter (uncredited) |
| Tommy Baker as Boy Ranger (uncredited) |
 | Robert Sterling as Senate Reporter (uncredited) |
 | Dub Taylor as Reporter (uncredited) |
 | George Chandler as Reporter (uncredited) |
 | Fred 'Snowflake' Toones as Porter (uncredited) |
 | Jack Carson as Sweeney Farrell (uncredited) |
 | Tommy Bupp as Cheering Boy (uncredited) |
 | Dora Clement as Mrs. McGann (uncredited) |
 | Bert Moorhouse as Man in Senate Building (uncredited) |
 | Harry C. Bradley as Arthur Kim (uncredited) |
 | Lynton Brent as Photographer (uncredited) |
| Ed Brewer as Senate Reporter (uncredited) |
 | Harlan Briggs as Mr. Edwards (uncredited) |
 | Harry Burkhardt as Senate Reporter (uncredited) |
| Frederick Burton as Senator Dearhorn (uncredited) |
 | Georgia Caine as Third Radio Speaker (uncredited) |
 | Ken Carpenter as Announcer (uncredited) |
| Burr Caruth as Townsend (uncredited) |
| Allan Cavan as Ragner (uncredited) |
 | Eddy Chandler as Reporter (uncredited) |
 | Davison Clark as Committeeman (uncredited) |
| Richard Clucas as (uncredited) |
| Shirley Coates as Assistant Bartender (uncredited) |
| Eddie Coke as Photographer (uncredited) |
| Hal Cooke as Reporter (uncredited) |
 | Alec Craig as Speaker (uncredited) |
 | Anne Cornwall as Senate Reporter (uncredited) |
 | George Cooper as Waiter (uncredited) |
| Georgie Cooper as Committeewoman (uncredited) |
 | Jack Cooper as Photographer (uncredited) |
| Nick Copeland as Senate Reporter (uncredited) |
 | Vernon Dent as Senate Reporter (uncredited) |
 | Maurice Costello as Diggs (uncredited) |
| Beatrice Curtis as Paine's Secretary (uncredited) |
| Lew Davis as Senate Clerk (uncredited) |
| Dulcie Day as Senate Reporter (uncredited) |
| Wally Dean as Paine's Friend (uncredited) |
 | Harry Depp as Hat Salesman / Secretary (uncredited) |
 | Byron Foulger as Hopper's Secretary (uncredited) |
 | Helen Jerome Eddy as Paine's Secretary (uncredited) |
 | Douglas Evans as Francis Scott Key (uncredited) |
 | Joe Devlin as Waiter (uncredited) |
| Clyde Dilson as Reporter (uncredited) |
 | John Dilson as Secretary (uncredited) |
| Neal Dodd as Senate Chaplain (uncredited) |
 | Lester Dorr as Taylor's Stooge (uncredited) |
 | Robert Dudley as Reporter (uncredited) |
 | Edward Earle as Reporter (uncredited) |
 | Jack Egan as Reporter (uncredited) |
 | Eddie Fetherston as Senate Reporter (uncredited) |
 | Mabel Forrest as Senate Reporter (uncredited) |
 | Gladys Gale as Committeewoman (uncredited) |
| Jack Gardner as Reporter (uncredited) |
 | Mary Gordon as Woman (uncredited) |
 | June Gittelson as Woman at Station (uncredited) |
 | Lorna Gray as Woman at Station (uncredited) |
 | Harry Hayden as First Radio Announcer (uncredited) |
 | Louis Jean Heydt as Soapbox Speaker (uncredited) |
 | John Ince as Senator Fernwick (uncredited) |
| Frank Jaquet as Senator Byron (uncredited) |
 | Philo McCullough as Senator Albert (uncredited) |
| Wright Kramer as Senator Carlton (uncredited) |
 | Henry Hebert as Senator (uncredited) |
| Fred Hoose as Senator (uncredited) |
| Richard Kipling as Senator (uncredited) |
| Roger Haliday as Senate Guard (uncredited) |
| Wilfred Hari as House Boy (uncredited) |
 | Philip Hurlic as Boy Ranger (uncredited) |
 | Olaf Hytten as Butler (uncredited) |
 | Lloyd Ingraham as Committeeman (uncredited) |
 | Mitchell Ingraham as (uncredited) |
| Dick Jensen as Hoodlum (uncredited) |
| John Lester Johnson as Butler (uncredited) |
 | Eddie Kane as Reporter (uncredited) |
 | Donald Kerr as Reporter (uncredited) |
 | Milton Kibbee as Senate Reporter (uncredited) |
 | Joe King as Summers (uncredited) |
 | Evalyn Knapp as Reporter (uncredited) |
 | Paul Kruger as Bodyguard (uncredited) |
 | Bobby Larson as Boy Ranger (uncredited) |
| Billy Lechner as Boy Ranger (uncredited) |
| Jackie Lowe as Boy Ranger (uncredited) |
| P.H. Levy as Rabbi (uncredited) |
 | Vera Lewis as Mrs. Edwards (uncredited) |
 | Jack Lindquist as Chorus Member (uncredited) |
 | George Lloyd as Hoodlum (uncredited) |
 | Arthur Loft as Chief Clerk (uncredited) |
| Jack Low as Hoodlum (uncredited) |
| Jimmie Lucas as Photographer (uncredited) |
 | Mary MacLaren as Head Sister (uncredited) |
 | Hank Mann as Photographer (uncredited) |
 | Margaret Mann as Nun (uncredited) |
 | Eric Mayne as Man in Senate Building (uncredited) |
| Ralph McCullough as Assistant Bartender (uncredited) |
 | George McKay as Reporter (uncredited) |
 | Lafe McKee as Veteran at Lincoln Memorial (uncredited) |
 | Ben Taggart as Pompous Man (uncredited) |
| Field Norton as Pompous Man (uncredited) |
 | Wilfred Lucas as Pompous Man (uncredited) |
 | Sammy McKim as Boy Ranger (uncredited) |
| James McNamara as Reporter (uncredited) |
 | William Newell as Reporter (uncredited) |
 | Robert Middlemass as Radio Announcer #2 (uncredited) |
 | James Millican as Senate Reporter (uncredited) |
 | Howard M. Mitchell as Shoe Salesman (uncredited) |
 | Charles R. Moore as Porter (uncredited) |
 | Gene Morgan as Reporter (uncredited) |
| Robert Morgan as Senate Clerk (uncredited) |
| Ray Nichols as Boy Ranger (uncredited) |
| Alex Novinsky as Foreign Diplomat (uncredited) |
 | Frank O'Connor as Senator Alfred (uncredited) |
| Frank Otto as Fisk (uncredited) |
| Joe Palma as Hoodlum (uncredited) |
| Spencer Quinn as (uncredited) |
| Tom Quinn as Senate Reporter (uncredited) |
| Ed Randolph as Senate Reporter (uncredited) |
| Charles Regan as Hoodlum (uncredited) |
 | Jack Rice as Lang (uncredited) |
 | Wyndham Standing as Senator Ashman (uncredited) |
 | Ferris Taylor as Senator Carlisle (uncredited) |
 | Jack Richardson as Senator Manchester (uncredited) |
 | Walter Soderling as Senator Pickett (uncredited) |
| Harry Stafford as Senator Atwater (uncredited) |
 | Victor Travis as Senator Grainger (uncredited) |
 | Carl Stockdale as Senator Burdette (uncredited) |
 | Bob Walker as Senator Holland (uncredited) |
| Henry Roquemore as Senator (uncredited) |
 | Craig Stevens as Senate Reporter (uncredited) |
 | Paul Stanton as Flood a Newsman (uncredited) |
 | Johnny Russell as Otis Hopper (uncredited) |
 | Walter Sande as Newspaperman with Pipe (uncredited) |
 | Frank M. Thomas as Hendricks (uncredited) |
 | Harry Strang as Bodyguard (uncredited) |
 | Harry Tenbrook as Bodyguard (uncredited) |
 | Dave Willock as Senate Guard (uncredited) |
 | Lloyd Whitlock as Schultz (uncredited) |
 | John Tyrrell as (uncredited) |
 | Frederick Vroom as Paine's Friend (uncredited) |
 | Charles Sullivan as Cab Driver (uncredited) |
| Arthur Thalasso as Doorman (uncredited) |
| Edward Thomas as Butler (uncredited) |
| Laura Treadwell as Mrs. Taylor (uncredited) |
 | Layne Tom Jr. as Boy Ranger (uncredited) |
| Myonne Walsh as Jane Hopper (uncredited) |
 | Billy Wayne as Reporter (uncredited) |
| Max Waizmann as Photographer (uncredited) |
 | John Ward as Photographer (uncredited) |
| Jane Loofbourrow as Committeewoman (uncredited) |
 | Blanche Payson as Committeewoman (uncredited) |
| Emma Tansey as Committeewoman (uncredited) |
| Bess Wade as Committeewoman (uncredited) |
 | Florence Wix as Committeewoman (uncredited) |
| Eleanor Wood as Committeewoman (uncredited) |
 | Jesse Graves as Black Committeeman (uncredited) |
| Gus Glassmire as Angry Committee Member (uncredited) |
 | Larry Steers as Committeeman (uncredited) |
 | Landers Stevens as Committeeman (uncredited) |
 | William Worthington as Committeeman (uncredited) |
| Edward Biby as Foreign Diplomat (uncredited) |
| Count Stefenelli as Foreign Diplomat (uncredited) |
| David Wade as (uncredited) |
 | Frank McLure as Senator (uncredited) |
| Writing | |
| Sidney Buchman | Screenplay |
Sound | |
| Dimitri Tiomkin | Original Music Composer |
Directing | |
| Frank Capra | Director |
Writing | |
| Lewis R. Foster | Story |
Art | |
| Lionel Banks | Art Direction |
Editing | |
| Gene Havlick | Editor |
Camera | |
| Joseph Walker | Director of Photography |
Editing | |
| Al Clark | Editor |
Visual Effects | |
| Slavko Vorkapich | Visual Effects |
Sound | |
| Morris Stoloff | Music Director |
Costume & Make-Up | |
| Robert Kalloch | Costume Design |
Directing | |
| Arthur S. Black Jr. | Assistant Director |
