Detective Inspector Jamieson

Stanley Baker

Acting

Sgt. Beck

Denis Lill

Acting

Insp. Havelock

David Swift

Acting

Octavius Lamb

Derek Francis

Acting

Madeleine

Barbara Leigh-Hunt

Acting

Steven (as Simon Turner)

Simon Fisher-Turner

Sound

Lloyd

Peter Sallis

Acting

Mr. Humber

Artro Morris

Acting

Miss Bennett

Gillian Raine

Acting

Bardon

Michael Hawkins

Acting

Mary

Ingrid Hafner

Acting

Professor Friedland

Bruce Boa

Acting

Mr. Lavender

Cyril Shaps

Acting

Mrs. Lavender

Shelagh Wilcocks

Acting

Mrs. Bute

Honora Burke

Acting

Casson

John Challis

Acting

Doctor Robson

Anthony Roye

Acting

Miss Compton

Eve Karpf

Acting

Sgt. Latimer

Anthony Bailey

Acting

P.C. Hanworth

Miles Anderson

Acting

P.C. York

Dennis Blanch

Acting

Amy

Cheryl Hall

Acting

Michael

Colin Edwynn

Acting

Nurse

Mona Hammond

Acting

Receptionist

Melinda Sheridan

Acting