as Lt. H. Pennell R.N.
as Beadle
as Ronald Bruce
as Prof. Flaherty
as Patrolman (uncredited)
as Sergeant Odd
as Tallow
as Mac
as Inspector Shearing
as Prosecutor
as Wilson (uncredited)
as 1st Villager
as Landlord
as Supt. Crowe
as Major Osborne
as Webb
as PC 'Jock' Campbell
as Policeman on Train (uncredited)
as Detective Chief Inspector
as Ted Austin
as Sgt. Bellamy
as Bill Dodd
as Mark
as Assistant Commissioner
as (uncredited)
as Supt. James
as Lord Steven Wolverbury
as River Police Inspector
as Johns
as Sergeant
as Charlie
as Nimmo
as Madison, tall henchman
as Prof. Flaherty (archive footage)
as Col. James Somerset
as Journalist (uncredited)
as Roger Manning
as Gerald Vane
as Bill Bryant
as Sellars
as James Pelly
as Lt. Travers
as Donald Carson
as Felix
as Jack Wraydon
as Will Scatlock (uncredited)
as Capt. Hartnett (uncredited)
as Colonel Bullinger
as Kemp
as King Richard The Lionheart
as Earl of Ashington
