William Powell
Steve Ireland
Gail Patrick
Isobel Kimble Grayson
Jack Carson
Ward Willoughby
Florence Bates
Mrs. Cooper
Sidney Blackmer
Lawyer George Renny
Vladimir Sokoloff
Dr. David Klugle
Donald MacBride
'Pinky' Grayson
Sara Haden
Miss Cecilia Landis
Kathleen Lockhart
Mrs. Bristol
Fern Emmett
Martha - Ireland's Maid
George Meeker
Lawyer DeWest
Clarence Muse
Robert - Hat Check Man at Party
Elisha Cook Jr.
Joe (elevator operator)
Barbara Bedford
Renny's Secretary (uncredited)
Aldrich Bowker
Jimmy - the Doorman (uncredited)
Edward Hearn
Policeman (uncredited)
George Irving
Sanity Hearing Doctor (uncredited)
May McAvoy
Sanity Hearting Secretary (uncredited)
Ian Wolfe
Sanity Hearing Doctor (uncredited)