Sidney Hayers
Director
Kendal Young
Novel
John Kruse
Screenplay
Peter Rogers
Producer
Courtenay Elliott
Costume Design
Eric Rogers
Original Music Composer
Suzy Kendall
Julie West
Frank Finlay
Det. Chief Supt. Velyan
Freddie Jones
Reporter
James Laurenson
Greg Lomax
Lesley-Anne Down
Tessa Hurst
Tony Beckley
Leslie Sanford
Anthony Ainley
Mr. Bartell
Dilys Hamlett
Mrs. Sanford
James Cosmo
Det. Sgt. Beale
Marianne Stone
Matron
Allan Cuthbertson
Coroner
Kit Taylor
Doctor
Janet Lynn
Girl in Library
Patrick Jordan
Sgt. Milton
Anabel Littledale
Susan Miller
Tom Chatto
Police Doctor
Jan Butlin
Day Receptionist
William Hoyland
Chemist in Hospital
John Swindells
Desk Sergeant
Jill Carey
Night Receptionist
David Essex
Man in Chemist Shop
Valerie Shute
Girl in Chemist Shop
John Stone
Fire Chief
Siobhan Quinlan
Jenny Greenaway
Patricia Driscoll
Mrs. Hurst (uncredited)
Pat Gorman
Final scene pc (uncredited)
Charles Rayford
Dead Chemist (uncredited)
Renu Setna
Doctor (uncredited)
Reg Thomason
Man in Police Station (uncredited)
Joe Wadham
Police Driver (uncredited)
