Reparto (12)
Derek FarrIvan Mason / Dr. James Paxton
Ella RainesRhona Ellison
Donald WolfitProf. Cattrell
Lisa DanielyNurse Mitzi
Bruce BeebyDr. Manning
Russell NapierScotland Yard Supt. Davidson
Cyril CusackDr. Kelly
Frederick PiperMedwood Inspector Hayman
Karl StepanekDmitri BalinkevAlfred MaronAmbulance Driver
John WelshGeorge White - the Gamekeeper
Olive SloaneMrs. Lemmin - the Landlady