The Long Arm

Jack Hawkins

Supt Tom Halliday

John Stratton

Sergeant Ward

Dorothy Alison

Mary Halliday

Sam Kydd

Police Constable in Information Room

Glyn Houston

Detective Sergeant in 'Q' car

Richard Leech

Nightwatchman / Gilson

Geoffrey Keen

Chief Superintendent Jim Malcolm

Sydney Tafler

Stone

Peter Burton

Creasey

George Rose

Slob

Arthur Rigby

Detective Inspector at Chester

Ralph Truman

Colonel Blenkinsop

Ian Bannen

The Young Workman - Stanley James

Joss Ambler

Cashier at Shipping Office

Barry Keegan

Detective Constable in Hospital Ward

Алек МакКоуэн

House Surgeon

Harry Locke

Secondhand Dealer

Nicholas Parsons

Police Constable Bates

Meredith Edwards

Mr. Thomas

Harold Goodwin

Official at Somerset House

John Welsh

House Agent at Shepperton

Maureen Delaney

Mrs. Stevens, the daily help

Jameson Clark

Detective Superintendent Ogilvie

William Mervyn

Manager of Festival Hall