Elenco - If You Knew Susie
Eddie Cantor
Sam Parker
Joan Davis
Susie Parker
Allyn Joslyn
Mike Garrett
Charles Dingle
Mr. Whitley
Phil Brown
Joe Collins
Sheldon Leonard
Steve Garland
Joe Sawyer
Zero Zantini
Douglas Fowley
Marty
Margaret Kerry
Marjorie Parker
Dickie Humphreys
Hancock Otis "Handy" Clinton III (as Dick Humphreys)
Howard Freeman
Mr. Hancock Otis Clinton
Mabel Paige
Grandma
Sig Ruman
Count Alexis
Fritz Feld
Chez Henri
Isabel Randolph
Mrs. Clinton
Bobby Driscoll
Junior Parker
Dorothy Abbott
Model (uncredited)
Don Beddoe
Editor (uncredited)
Robert Bray
Reporter (uncredited)
Claire Carleton
Vicki Vale (uncredited)
George Chandler
Reporter (uncredited)
Robert Clarke
Bob - Orchestra Leader (uncredited)
Gail Davis
Miss Gail - Mike's Secretary (uncredited)Joe Devlin
Silent Cy - Steve's Henchman (uncredited)
Dick Gordon
Assistant Hotel Manager (uncredited)
Charles Halton
Pringle (uncredited)
Harry Harvey
Sedley (uncredited)
Earle Hodgins
Auctioneer (uncredited)
J. Farrell MacDonald
Police Sergeant (uncredited)
Frank Marlowe
Bennie - Steve's Henchman (uncredited)
Addison Richards
Senator Making Speech (uncredited)
Jason Robards Sr.
Ogleby (uncredited)
Sammy Stein
Wee Willie (uncredited)
Mary Field
Telephone Operator