O Cérebro Maligno

Lew Ayres Dr. Patrick J. Cory Nancy Reagan Janice Cory Gene Evans Dr. Frank Schratt Steve Brodie Herbie Yocum Tom Powers Donovan's Washington Advisor Lisa Howard Chloe Donovan James Anderson Chief Tuttle Victor Sutherland Nathaniel Fuller Michael Colgan Tom Donovan Peter Adams Mr. Webster Harlan Warde Treasury Agent Brooke Shimen Ruskin Tailor John Hamilton Mr. McNish (uncredited) Don Brodie Detective Who Follows Dr. Cory from Hotel (uncredited)