Nigel Patrick
Superintendent Robert Hazard
Michael Craig
Inspector Phil Learoyd
Yvonne Mitchell
Mildred
Paul Massie
David Harris
Bernard Miles
Ted Harris
Olga Lindo
Mrs. Harris
Earl Cameron
Dr. Robbins
Gordon Heath
Paul Slade
Barbara Steele
Student
Peter Vaughan
Detective Whitehead (uncredited)
Yvonne Buckingham
Sapphire Robbins
Jocelyn Britton
Patsy
Robert Adams
Horace Big Cigar
Desmond Llewelyn
Police Constable
