Nero Wolfe

Edward Arnold

Archie Goodwin

Lionel Stander

Det. Lt. O'Grady

Gene Morgan

Marie Maringola

Rita Hayworth

Dr. Nathaniel Bradford

Frank Conroy

Carlo Maringola

Juan Torena

The Apartment House Maid

Martha Tibbetts

Minor Role (uncredited)

Henry Roquemore

Golf Starter (uncredited)

Eddy Waller

Mazie Gray

Dennie Moore

Claude Roberts

Victor Jory

Sarah Barstow

Nana Bryant

Ellen Barstow

Joan Perry

Manuel Kimball

Russell Hardie

Emanuel Jeremiah (E.J.) Kimball

Walter Kingsford

Prof. Edgar Barstow

Boyd Irwin

Olaf

John Qualen

Director

Herbert J. Biberman