- Jean Harlow
- Mona Leslie
- William Powell
- Ned Riley
- Franchot Tone
- Bob Harrison
- May Robson
- Granny
- Ted Healy
- Smiley
- Nat Pendleton
- Blossom
- Rosalind Russell
- Josephine (Jo) Mercer
- Mickey Rooney
- Eddie
- Henry Stephenson
- Col. Harrison
- Man Mountain Dean
- Man Mountain Dean - Wrestler
- Robert Light
- Paul Mercer
- Allan Jones
- Allan
- Carl Randall
- Carl Randall
- Louise Henry
- Louise
- James Ellison
- Dale Every
- Nina Mae McKinney
- Nina Mae McKinney - Singer
- Leon Ames
- Ralph Watson
- Allen 'Farina' Hoskins
- Gold Dust
- Eadie Adams
- Chorine / Mona's Singing Voice (uncredited)
- Rafael Alcayde
- Mona's First Dance Partner in 'Reckless' Number
- Robert Andrews
- Mona's Baby
- Hooper Atchley
- Reporter
- William Begg
- Wedding Guest
- Margaret Bert
- Nurse
- Wade Boteler
- Policeman Re-arresting Mona
- Don Brodie
- Reporter
- Stuart Casey
- Mr. John Gaylord
- James Conaty
- Wedding Guest
- Theresa Maxwell Conover
- Woman with Smiley at Racetrack
- Nick Copeland
- Reporter
- Oliver Cross
- Wedding Guest
- John Davidson
- Sid - Mona's Lawyer
- Jan Duggan
- Chairwoman
- Margaret Dumont
- Woman in Audience Yelling 'Get Off the Stage'
- Bill Elliott
- Undetermined Secondary Role
- Dick Elliott
- Man Near Drums
- Paul Ellis
- Shipboard Gigolo in 'Reckless' Number
- Paul Fix
- Man on Mechanical Horse
- Sam Flint
- Jo Mercer's Father
- Jean Fowler
- Audience Member
- John Gallaudet
- Doorman at Poker Game
- Jean Gunn
- Little Girl Singer
- Ernie Haynes
- Wrestler
- Earlene Heath
- Chorine
- Harold Huber
- Nick Londos
- Isabelle Keith
- Woman in Audience Who Throws Purse
- Henry Kolker
- Mr. Gearhart
- Edna Lawrence
- Chorine
- Rosina Lawrence
- Chorine
- Billie Lee
- Chorine
- Edward LeSaint
- Member of Coroner's Jury
- Carl M. Leviness
- Wedding Guest
- Theodore Lorch
- Member of Coroner's Jury
- Lorna Low
- Chorine
- Mae Madison
- Chorine
- Mary Jo Mathews
- Chorine
- Charles Meakin
- Audience Member
- Charles Middleton
- District Attorney
- Charles R. Moore
- Train Porter
- Bert Moorhouse
- Racetrack Spectator / Wedding Guest (uncredited)
- Jack Mulhall
- Paul's Restrainer in Bar
- Wedgwood Nowell
- Audience Member
- Franklin Parker
- Reporter
- Edward Peil Sr.
- Man Raising Stage Curtain
- Lee Phelps
- Hotel Desk Clerk
- Ramon and Dolores
- Performers
- Donna Mae Roberts
- Chorine
- Frances Robinson
- Chorine
- Loretta Russell
- Audience Member
- Fred Santley
- Hotel Desk Clerk
- Larry Steers
- Paul's Restrainer in Bar
- Kay Sutton
- Woman with Paul in Audience
- Akim Tamiroff
- Chef at Wedding
- Albert Taylor
- Racetrack Spectator / Wedding Guest (uncredited)
- Libby Taylor
- Bertha - Mona's and Granny's Maid
- Irene Thompson
- Chorine
- David Thursby
- Reporter
- Jim Toney
- Man in Hallway
- Edna Waldron
- Chorine
- Alice Weaver
- Chorine
- Lloyd Whitlock
- Racetrack Spectator / Wedding Guest (uncredited)
- Charles C. Wilson
- Newspaper Editor
- Barbara Worth
- Chorine
- William Worthington
- Wedding Guest
