C.M. Pennington-Richards Director Jeff Morrow Joe Saunders Actor Hazel Court Mrs. Margaret Saunders, Peggy Actor Anthony Dawson Gary Bax Actor Mary Laura Wood Olive Bax Actor Alan Gifford J Foster Green Actor Carl Bernard Inspector Gower Actor Lionel Jeffries Elvin Main Actor Vanda Godsell Eileen Chadwick Actor Robert Sansom Rees Chadwick Actor Garard Green Tony Pendleton Actor Monty Berman Producer Norman Hudis Writer