Cast
Mona Barrie
Nurse Marian Tracy
Paul Hurst
Page
Leon Ames
John Stack
Blanche Yurka
Mrs. Augusta Stack
Olin Howland
Dr. Williams
Ralph Bellamy
Ellery Queen
Charley Grapewin
Insp. Queen
Dennis Moore
Dr. Dunn
Byron Foulger
Hospital Orderly (uncredited)
Jean Fenwick
Alice Stack
Margaret Lindsay
Nikki Porter
Charlotte Wynters
Miss Fox
Tom Dugan
Lou Thomas
Pierre Watkin
Crothers
James Burke
Sgt. Velie
George Zucco
Dr. Edwin L. Jannery