Mary Peach as Dr. Hill

Bryant Haliday as Dr. Steiner

Norman Wooland as Dr. Blanchard

Ronald Allen as Dr. Mitchel

Derek Farr as Insp. Davis

Derrick De Marney as Latham

Gerard Heinz as Dr. Lembach

Tracey Crisp as Sheila Anderson

Sam Kydd as Harry Slinger

Norma West as Gloria King

Frank Gatliff as Dr. Wilson

Terry Scully as Steve Lowe