Discover
Frank Morgan
J. Daniel 'Dan' Thompson
Mary Howard
Mary Thompson
Billie Burke
Bernice Marshall, Boardinghouse Keeper
Donald Meek
Professor Charles W. Birdo
Marjorie Main
Irma, the Cook
Connie Gilchrist
Mrs. Evelyn Diamond
Bonita Granville
Francine 'Frankie' Diamond
Dan Dailey
Ed LeMotte (as Dan Dailey Jr.)
Andrew Tombes
'Doc' Dunbar
Walter Catlett
'Doc' Skelby
Joseph J. Greene
Mr. Robert Emmett Ferderber, Private Detective (as Joseph J. Green)
Phil Silvers
Murdock, Side Show Barker
Irving Bacon
Carriage Driver
James Flavin
Policeman
Mayta Palmera
Little Cairo
Directing
Robert B. Sinclair
Director
Writing
Waldo Salt
Screenplay
John McClain
Screenplay
Herman J. Mankiewicz
Screenplay
Marc Connelly
Screenplay
Directing
Robert B. Sinclair
Director
Writing
Waldo Salt
Screenplay
John McClain
Screenplay
Herman J. Mankiewicz
Screenplay
Marc Connelly
Screenplay