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

Patrick Jordan

Sgt. Milton

William Hoyland

Chemist in Hospital

John Swindells

Desk Sergeant

David Essex

Man in Chemist Shop

John Stone

Fire Chief

Pat Gorman

Final scene pc (uncredited)

Renu Setna

Doctor (uncredited)