Virginia Mayo
Honey Swanson
Benny Goodman
Professor Magenbruch
Louis Armstrong
Louis Armstrong
Lionel Hampton
Lionel Hampton
Charlie Barnet
Charlie Barnet
John 'Bubbles' Sublett
Bubbles
Page Cavanaugh
Page Cavanaugh
Orlandus Wilson
Orlandus Wilson
Willie Johnson
Willie Johnson
Clyde Riddick
Clyde Riddick
Hugh Herbert
Professor Twingle
J. Edward Bromberg
Dr. Elfini
Felix Bressart
Professor Gerkikoff
Ludwig Stössel
Professor Träumer
O.Z. Whitehead
Professor Oddly
Howland Chamberlain
Mr. Setter
Laurindo Almeida
Laurindo Almeida (uncredited)
Sue George
Cigarette Girl (uncredited)
Milicent Patrick
Woman at Dorsey Club (uncredited)
