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

John Hoyt

William Travers Jerome

Robert F. Simon

Stage Manager (as Robert Simon)

Harvey Stephens

Dr. Hollingshead DDS

Emile Meyer

Hunchbacher

Richard Travis

Charles Dana Gibson (uncredited)

Edna Holland

Sales Clerk at Lord & Taylor (uncredited)

Suzanne Alexander

Floradora Girl (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)

Raymond Bailey

Judge Fitzgerald (uncredited)

Robert Adler

Driver (uncredited)