Режиссер: Robert Stevenson
Борис Карлофф
Dr. Laurence
Anna Lee
Dr. Clare Wyatt
John Loder
Dick Haslewood
Frank Cellier
Lord Haslewood
Donald Calthrop
Clayton
Cecil Parker
Dr. Gratton
Lyn Harding
Prof. Holloway
Clive Morton
Journalist
D.J. Williams
Landlord
Vincent Holman
Mr. Gray
Charles Rolfe
Police Constable
Bryan Powley
