John Warwick

as Inspector

as Frank Jamieson

as Dr. Bricars

as Sir Adrian Gillespie

as Police Sgt

as Inspector Langdon

as Inspector Cobley

as Dr. Worksop

as Insp. Lodge

as Colonel Layton

as Police Superintendent

as Cmdr. Chambers

as 1st Ambulance Man (uncredited)

as Detective Inspector at Shipping Office

as John Patterson

as Bryant, director del polideportivo

as Carter

as Sergeant Gurney

as Robson (uncredited)

as Insp. Gray

as Security Chief Brice (uncredited)

as Prisoner's Escort on Ship (uncredited)

as Pete Hanken

as Inspector Raynor

as Inspector Hewitt (uncredited)

as Inspector Jim Moss (uncredited)

as Carley

as George Grant

as Det. Insp. Carter

as Dr. Gavron

as Donald Clark

as Milligan, Reporter in Fleet Street Pub

as Bennett

as Carter

as Norman (uncredited)

as Jack Gay

as Gregory

as Recruiting Officer

as Shaw

as Studd

as Brown

as (uncredited)

as George Davenport

as Lucien Cortier

as Ted Bracher

as Goddard

as Johnnie Clayton

as John Halifax

as Nick Bryan

as Robert Brierly

as John Marsden

as Eddie 'Babyface' Fallon

as Frank Drayton

as Dr. Henry Everard

as Clive Sherrington

as Midshipman Young

as Jim Carey