Mike

Carnival Barker (uncredited)

Detective Sergeant in 'Q' car

Bailey

Sgt. Parker

Charlie Williamson

Smoking Machinist

Stoker (uncredited)

Detective Inspector Barnes

Sidney Stewart

Ticket Collector

Pit Manager

Detective at Police Station (uncredited)

Barrow Boy (Uncredited)

Inspector Sparrow

Frank Moore

Inspector Harris

Dai Thomas

Mr. Collins

Police Officer in Court (uncredited)

Box office clerk

Marriott

Det. Insp. Isaacs

Cesar Rodriguez

Police Sergeant Draycott

Professor Watson

Aneurin Morgan

Peters

Berry

Ted

Bus Driver

Charley Boy

Hugh Davies

Bernard Ingham

Phillips

Sailor (uncredited)

Harry 'Hurricane'

Able Seaman - 'Prince of Wales' (uncredited)

Bob

Cpl. Welsh, St. John's Ambulance

Ned Rutter

Old Jack

Colonel Ronald Sutherland

Colonel Ben Wolsey

George

Bates

Knox

2nd Porter

Arresting Policeman (uncredited)

Passerby (uncredited)