Cary Grant character Mortimer Brewster
Priscilla Lane character Elaine Harper Brewster
Raymond Massey character Jonathan Brewster
Jack Carson character Officer Patrick O'Hara
Edward Everett Horton character Mr. Witherspoon
Peter Lorre character Dr. Einstein
James Gleason character Lt. Rooney
Josephine Hull character Aunt Abby Brewster
Jean Adair character Aunt Martha Brewster
John Alexander character 'Teddy Roosevelt' Brewster
Grant Mitchell character Reverend Harper
Edward McNamara character Sergeant Brophy
Garry Owen character Taxi Cab Driver
John Ridgely character Officer Saunders
Vaughan Glaser character Judge Cullman
Chester Clute character Dr. Gilchrist
Charles Lane character Reporter at Marriage License Office
Edward McWade character Gibbs
Hank Mann character Photographer at Marriage License Office (uncredited)
Spencer Charters character Marriage License Clerk
Sol Gorss character New York Pitcher (uncredited)
Lee Phelps character Umpire (uncredited)
Raymond Walburn character Drummer at baseball game (uncredited)
Spec O'Donnell character Young Man in Line (uncredited)
Leo White character Man in Phone Booth (uncredited)