Ralph Bellamy

Ellery Queen

Margaret Lindsay

Nikki Porter

Charley Grapewin

Insp. Queen

Mona Barrie

Nurse Marian Tracy

Paul Hurst

Page

James Burke

Sgt. Velie

Leon Ames

John Stack

George Zucco

Dr. Edwin L. Jannery

Blanche Yurka

Mrs. Augusta Stack