Ray Milland
Stanford White
Joan Collins
Evelyn Nesbit Thaw
Farley Granger
Harry Kendall Thaw
Luther Adler
Delphin Delmas
Cornelia Otis Skinner
Mrs. Thaw
Glenda Farrell
Mrs. Nesbit
Frances Fuller
Mrs. Elizabeth White
Phillip Reed
Robert Collier
Gale Robbins
Gwen Arden
James Lorimer
McCaleb
John Hoyt
William Travers Jerome
Robert F. Simon
Stage Manager (as Robert Simon)
Harvey Stephens
Dr. Hollingshead DDS
Emile Meyer
Hunchbacher
Henry Kulky
Prisoner (uncredited)
Richard Travis
Charles Dana Gibson (uncredited)
Edna Holland
Sales Clerk at Lord & Taylor (uncredited)
Suzanne Alexander
Floradora Girl (uncredited)
Helen Van Tuyl
Mrs. Jennings (uncredited)
Gordon Carveth
Juror (uncredited)
Edith Evanson
Josie (uncredited)
William Forrest
Simpson (uncredited)
Kit Guard
Backstage Policeman (uncredited)
Ruta Lee
Tennis Girl (uncredited)
Ainslie Pryor
Sport Donnelly (uncredited)
Ivan Triesault
Ludwig (uncredited)
Art Felix
Waiter (uncredited)
Diane DuBois
Floradora Girl (uncredited)
Raymond Bailey
Judge Fitzgerald (uncredited)
Robert Adler
Driver (uncredited)
Carol Kelly
Margaret (uncredited)