type: 

COMEDY

DRAMA

A naive man is appointed to fill a vacancy in the US Senate. His plans promptly collide with political corruption, but he doesn't back down.

name	character
Astrid Allwyn	Susan Paine
Edward Arnold	Jim Taylor
Jean Arthur	Clarissa Saunders
Beulah Bondi	Ma Smith
Harry Carey	President of the Senate - Henry
William Demarest	Bill Griffith
Ruth Donnelly	Emma Hopper
Dick Elliott	Carl Cook
Porter Hall	Sen. Martin Monroe
H.V. Kaltenborn	Himself
Guy Kibbee	Gov. Hubert 'Happy' Hopper
Charles Lane	Nosey Newsman
Grant Mitchell	Sen. MacPherson
Thomas Mitchell	Diz Moore
Eugene Pallette	Chick McGann
Claude Rains	Sen. Joseph Harrison Paine
John Russell	Otis Hopper
Larry Simms	Hopper Boy
James Stewart	Jefferson Smith
H.B. Warner	Sen. Agnew
Pierre Watkin	Sen. Barnes
Billy Watson	Peter Hopper
Delmar Watson	Jimmie Hopper
Garry Watson	Hopper Boy
Harry Watson	Hopper Boy

name
Sidney Buchman	screenplay
Frank Capra	director, producer
Lewis R. Foster	writer (original)
Dimitri Tiomkin	composer