Eve Amber
Maude Fenwick

Frederick Worlock
Dr. Onslow
Percival Vivian
Dr. Simnell

Coulter Irwin
Corporal Williams

Sally Shepherd
Crandon

Mary Gordon
Mrs. Hudson
John Burton
Waring the Mesmerist (uncredited)
Harold De Becker
Shoelace Vendor Henchman (uncredited)
Tony Ellis
Carter the Hypnotized Subject (uncredited)

Bess Flowers
Bar Patron (seen in mirror) (uncredited)