A scientist takes the brain of dead man and revives it via electrodes as it lays suspended in a tank of liquid. Soon, the brain grows to possess enormous psychic powers and inflicts its personality upon the doctor who saved it, creating a "Jekyll and Hyde" paradigm.

Dr. Patrick J. Cory

Janice Cory

Dr. Frank Schratt

Herbie Yocum

Donovan's Washington Advisor

Chloe Donovan

Chief Tuttle

Nathaniel Fuller

Mr. Webster

Treasury Agent Brooke

Tailor

Mr. McNish (uncredited)

Detective Who Follows Dr. Cory from Hotel (uncredited)

Man leaving Fuller's Office (uncredited)

Acting
September 30, 1953

Dr. Patrick J. Cory

Janice Cory

Dr. Frank Schratt

Herbie Yocum

Donovan's Washington Advisor

Chloe Donovan

Chief Tuttle

Nathaniel Fuller

Mr. Webster

Treasury Agent Brooke

Tailor

Mr. McNish (uncredited)

Detective Who Follows Dr. Cory from Hotel (uncredited)

Man leaving Fuller's Office (uncredited)

Acting
