"Biochemists give fruit-fly serum to a dying woman, with side effects."
Mari Blanchard
as Kyra Zelas
Jack Kelly
as Dr. Dan Scott
Albert Dekker
as Dr. Richard Bach
John Archer
as Barton Kendall
Fay Baker
as Evelyn Kendall
Marie Blake
as Hannah, the housekeeper
Paul Cavanagh
as Sugar Daddy
George Baxter
as Store Manager
Helen Jay
as Blond Nurse
Joan Bradshaw
as Redhead
X Brands
as First Doctor
Tod Griffin
as Intern
William Haade
as Detective (uncredited)
Franklyn Farnum
as Party Guest (uncredited)
Bess Flowers
Mary Bayless
as
Lovyss Bradley
Paul Bradley
Chet Brandenburg
Steve Carruthers
Beulah Christian
Kenneth Gibson
Marion Gray
Thomas Martin
Cosmo Sardo
Luree Wiese
Kurt Neumann
Screenplay
Carroll Young
Karl Struss
Director of Photography
Director
Producer
Stanley G. Weinbaum
Story
Bert Shefter
Original Music Composer
Theobold Holsopple
Production Design
Carl Pierson
Editor
Paul Sawtell
Walter M. Scott
Set Decoration
Louis Hippe
Makeup Artist
Madine Danks
Hairstylist
Chester L. Bayhi
