Danny Kaye (Prof. Robert Frisbee)
Virginia Mayo (Honey Swanson)
Benny Goodman (Prof. Magenbruch)
Hugh Herbert (Prof. Twingle)
Steve Cochran (Tony Crow)
The Samba Kings
Diana Mumby
Barbara Hamilton
Ben Welden (Monte)
Patricia Walker (Photographer at Dorsey Club)
Irene Vernon
Marjorie Jackson
Muni Seroff
John Impolito
Martha Montgomery
Alice Wallace
Donald Wilmot
Susan George (Cigarette Girl)
Gene Morgan
Page Cavanaugh
Russo and the Samba Kings
Will Lee (Waiter)
Joe Devlin (Gangster)
Ben Chasen (Ben)
Joseph Crehan (District Attorney)
Buck and Bubbles
Robert Dudley (Justice of the Peace)
Jack Gargan (Stenotypist)
Lane Chandler (Policeman at Inn)
Karen X. Gaylord
Jeffrey Sayre
Shirley Ballard
William Haade
Louis Bellson (Drums)
Esther Dale (Miss Bragg)
Mary Field (Miss Totten)
Howland Chamberlain (Mr. Setter)
Paul Langton (Joe)
Sidney Blackmer (Adams)
Peter Virgo (Louis)
Tommy Dorsey (Himself)
Lionel Hampton (Himself)
Charlie Barnet (Himself)
Mel Powell (Himself)
Page Cavanaugh Trio
The Golden Gate Quartet
Louis Armstrong (Himself)
J. Edward Bromberg (Dr. Elfini)
Felix Bressart (Prof. Gerkikoff)
Ludwig Stossel (Prof. Traumer)
O.Z. Whitehead (Prof. Oddly)