Casts
Don 'Red' Barry
as Mike O'Hara, "King Cobra"
Sheila Ryan
as Janet 'J.L.' Brannigan
Tom Brown
as Joe O'Hara
Joseph Crehan
as Oscar Brannigan
John Cason
as Tiger Johnson
William Edmunds
as Professor Berger
Margia Dean
as Joy White
Lyle Talbot
as Radio Announcer
Michael Vallon
as Bettor
Sam Flint
as Doctor
