- Danny Kaye
- Professor Hobart Frisbee
- Virginia Mayo
- Honey Swanson
- Benny Goodman
- Professor Magenbruch
- Tommy Dorsey
- Tommy Dorsey
- Louis Armstrong
- Louis Armstrong
- Lionel Hampton
- Lionel Hampton
- Charlie Barnet
- Charlie Barnet
- Mel Powell
- Mel Powell
- Ford Washington Lee
- Buck
- John W. Bubbles
- Bubbles
- Page Cavanaugh Trio
- The Page Cavanaugh Trio
- The Golden Gate Quartette
- The Golden Gate Quartette
- Samba Kings
- The Samba Kings
- Hugh Herbert
- Professor Twingle
- Steve Cochran
- Tony Crow
- J. Edward Bromberg
- Dr. Elfini
- Felix Bressart
- Professor Gerkikoff
- Ludwig Stössel
- Professor Traumer
- O.Z. Whitehead
- Professor Oddly
- Esther Dale
- Miss Bragg
- Mary Field
- Miss Totten
- Howland Chamberlain
- Mr. Setter
- Paul Langton
- Joe
- Sidney Blackmer
- Adams
- Ben Welden
- Monte
- Ben Chasen
- Ben
- Peter Virgo
- Louis
- Harry Babasin
- Bass
- Louie Bellson
- Drums
- Alton Hendrickson
- Guitar
- Juliette Ball
- Woman at Chocolate Club
- Shirley Ballard
- Chorine at Crow's Nest
- Edward Biby
- Headwaiter at Barnet Club
- Norman Blake
- Man at Crow's Nest
- Lennie Bluett
- Man at Chocolate Club
- The Brazilians
- Performers
- Jill Browning
- Woman at Dorsey Club
- Paul E. Burns
- Justice of the Peace
- Lucille Casey
- Woman at Dorsey Club
- Page Cavanaugh
- Self - Singer / Pianist (uncredited)
- Lane Chandler
- Policeman at Twin Oaks Inn
- Peter Cusanelli
- Chef at Dixieland Club
- Vivian Dandridge
- Patron at The Chocolate Club
- Roy Darmour
- Man at Crow's Nest
- Joe Devlin
- Adams' Henchman
- Carl Faulkner
- Postman
- Maxine Fife
- Woman at Barnet Club
- Bess Flowers
- Nightclub Patron
- George Ford
- Man at Table
- Louise Franklin
- Woman at Chocolate Club
- Raoul Freeman
- Detective from D.A.'s Office
- Diane Garrett
- Woman at Dorsey Club
- Karen X. Gaylord
- Woman at Crow's Nest
- Norma Gentner
- Girl with Samba Kings
- Sue George
- Cigarette Girl
- William Haade
- Detective from D.A.'s Office
- Barbara Hamilton
- Woman at Dorsey Club
- Charles Hawkins
- Nightclub Patron at The Chocolate Club
- John Impolito
- Chef at the Dixieland
- Eugene Jackson
- Nightclub patron
- Freddie Jackson
- Nightclub patron
- Marjorie Jackson
- Chorine at Crow's Nest
- Donald Kerr
- Waiter at Crow's Nest
- Nolan Leary
- Stage Doorman at the Crow's Nest
- Bert LeBaron
- Chef at Dixieland Club
- Will Lee
- Waiter at the Dixieland Club
- Wilbur Mack
- Nightclub Patron
- Frank Meredith
- Policeman at Toll Gate
- Harold Miller
- Nightclub Patron
- Beverlee Mitchell
- Girl at Table
- Martha Montgomery
- Chorine at Crow's Nest
- Juanita Moore
- Woman at Chocolate Club
- Gene Morgan
- Man at Dorsey Club
- Diana Mumby
- Chorine at Crow's Nest
- Janie New
- Woman at Dorsey Club
- Milicent Patrick
- Woman at Dorsey Club
- Foster H. Phinney
- Man at Crow's Nest
- Jeffrey Sayre
- Man at Dorsey Club
- Muni Seroff
- Waiter
- Jeri Sullavan
- Honey Swanson
- Irene Vernon
- Woman at Crow's Nest
- Al Viola
- Self - Guitarist
- Pat Walker
- Photographer at Dorsey Club
- Alice Wallace
- Woman at Dorsey Club
- Don Wilmot
- Messenger
