Piccadilly Jim

Robert Montgomery

James Crocker, Jr.

Frank Morgan

James Crocker, Sr. / Count Olav Osric

Madge Evans

Ann Chester

Eric Blore

Bayliss, Jim's Butler

Billie Burke

Eugenia Willis, Nesta's Sister

Robert Benchley

Bill Macon

Ralph Forbes

Lord Frederick 'Freddie' Priory

Cora Witherspoon

Nesta Pett, Ann's Aunt

Tommy Bupp

Ogden Pett

Aileen Pringle

Paducah Pomeroy

Grant Mitchell

Herbert Pett

E. E. Clive

London Gossip Editor Bill Mechan

Billy Bevan

Taxi Driver

Grayce Hampton

Mrs. Brede (as Grace Hampton)

Bess Flowers

Nightclub patron

Torben Meyer

Pett's Butler (uncredited)

Dennis Morgan

Chrystal Club Singer (uncredited)

Dennis O'Keefe

Petie McGregor (uncredited)

Charles Brackett

Writer

Joseph Ruttenberg

Director of Photography

Edwin H. Knopf

Writer

Robert Z. Leonard

Director

P.G. Wodehouse

Novel

William S. Gray

Editor