Elenco - The Vicious Circle
John Mills
Dr. Howard Latimer
Derek Farr
Kenneth Palmer
Noelle Middleton
Laura James
Wilfrid Hyde-White
Maj. Harrington aka Robert Brady
Roland Culver
Detective Inspector Dane
Mervyn Johns
Dr. George Kimber
Rène Ray
Mrs. Ambler
Lionel Jeffries
Geoffrey Windsor
Lisa Daniely
Frieda Veldon
David Williams
The Detective SergeantDiana Lambert
Latimer's Office Nurse
Hal Osmond
Joe - Golf Caddy