Derek Farr

Ivan Mason / Dr. James Paxton

Ella Raines

Rhona Ellison

Donald Wolfit

Prof. Cattrell

Lisa Daniely

Nurse Mitzi

Bruce Beeby

Dr. Manning

Russell Napier

Scotland Yard Supt. Davidson

Cyril Cusack

Dr. Kelly

Frederick Piper

Medwood Inspector Hayman

Karl Stepanek

Dmitri Balinkev