Armchair Thriller

Frank Duncan

Announcer (voice)

James Bolam

Mark Omney

Paul Angelis

Tom Choley

Michael Culver

Dr. Walcott Brown

Christopher Benjamin

Det. Inspector Tarrant

Ian McShane

Curtis

John Bird

Cyril

John Shrapnel

Vincent Craig

Gerald Sim

Francis Durrant

Stephen Greif

Juan

Terence Rigby

Matthews

Malcolm Terris

Maxwell

Anton Phillips

Barman

Prentis Hancock

Desk Sergeant

David Hargreaves

Ken Holbrook

Milton Johns

Tim Kennaway

James Laurenson

Alexander Skarbek

Aimée Delamain

Mrs. Franklyn

Georgine Anderson

Mrs. Forde

Larry Lamb

CPO Chalky White

William Russell

Senior Officer

David Ellison

Naval Patrolman (uncredited)

Brenda Bruce

Sister Elizabeth

David Burke

Tom Amyas, MP