Donovan's Brain
Dr. Patrick J. Cory
Janice Cory
Dr. Frank Schratt
Herbie Yocum
Donovan's Washington Advisor
Chloe Donovan
Chief Tuttle
Nathaniel Fuller
Tom Donovan
Mr. Webster
Treasury Agent Brooke
Tailor
Mr. McNish (uncredited)
Detective Who Follows Dr. Cory from Hotel (uncredited)
W. J. Higgins (uncredited)
Man leaving Fuller's Office (uncredited)
Dr. Crane (uncredited)
Station Agent (uncredited)
Acting
