Inspector Lord

Norman

Sergeant Loder

Inspector Henderson

Inspector Cavendish

Inspector Rigby

Inspector Spedding

Film Producer

Sir George Cavendish

Sergeant Wright

Station Sergeant (Uncredited)

Inspector Hemingway

Station Sergeant Carter

Joe Marshall

Station Sgt. (uncredited)

Flight Sergeant

Inspector

Inspector Branson

William Blore

Prison Officer Mott

Dr. Watson

Joey / King of Hearts / Sergeant Rugg (voice)

Joe Hammond

Potter

Inspector

Inspector Prebble

War Office Clerk

Sgt. Phillips

Desk Sgt. Bates

Pub Landlord

Sergeant Dodson, River Police

A Policeman

Kingscombe

Joey / King of Hearts / Sergeant Rugg

Police Sergeant

Flt. Sgt. Campbell

Policeman

Stage Doorkeeper

Police Station Sergeant (Uncredited)