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

Phil Silvers

Murdock, Side Show Barker

Irving Bacon

Carriage Driver (uncredited)

James Flavin

Policeman (uncredited)

William Tannen

Actor in Film Scene (uncredited)

Kaaren Verne

Actress in Film Scene (uncredited)