Dermot Walsh
— Frank Manning
Hazel Court
— Clare Manning
Hermione Baddeley
— Madame Del Mar
Alexander Gauge
— Smith
Bill Travers
— Rex
Archie Duncan
— Jim Fenton
James Vivian
— Larry Fenton
Frederick Schrecker
— Plattnaur
John Penrose
— Paulson
Hugh Latimer
— Inspector Barlow
Beryl Baxter
— Plattnauer's Accomplice
Gwen Bacon
— Matron
Maxwell Foster
— Dr. Stevenson
Monti DeLyle
— Dance Director
Howard Lang
— Policeman