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 Sergeant

Diana Lambert

Latimer's Office Nurse

Hal Osmond

Joe - Golf Caddy