Pat O'Brien
— Ritzy
Glenda Farrell
— Joan
Claire Dodd
— Patricia
Robert Gleckler
— Gavin
Henry O'Neill
— Stephens
Bess Flowers
— Nurse
Thomas E. Jackson
— Rankin
Arthur Vinton
— McPhail
Clarence Muse
— Shamrock
Clay Clement
— Duncan
George Cooper
— Tiny
G. Pat Collins
— Ed
Al Hill
— Al
William Arnold
— Sam
Ralph Brooks
— Radio Mike Man in Ring
Mushy Callahan
— Biff Sullivan
Billy Coe
— Timekeeper
Morrie Cohan
— Mullen
Heinie Conklin
— Health Lecture Heckler
Lester Dorr
— Ritzy's Trainer
Harrison Greene
— 1st Ring Announcer
Howard Hickman
— Joan's Doctor
Harry Holman
— Diner Counterman
William Irving
— Fan Who Liked Ritzy's Yodeling
Jack Kennedy
— Bar Proprietor
Mike Lally
— Biff's Friend
Larry McGrath
— Sullivan Fight Referee
Margaret Morris
— Secretary
Jack Perry
— Sailor White (uncredited)
Paul Power
— Freddie