as Prof. Flaherty (archive footage)
as Beadle
as Col. James Somerset
as Nimmo
as Assistant Commissioner
as Prosecutor
as Prof. Flaherty
as Felix
as Charlie
as Patrolman (uncredited)
as Colonel Digby-Phillpotts
as (uncredited)
as River Police Inspector
as 1st Villager
as Policeman on Train (uncredited)
as Inspector Davis
as Supt. James
as Landlord
as Bill Dodd
as Inspector Shearing
as Colonel Bullinger(4 eps)
as Kemp(1 ep)
as King Richard The Lionheart(1 ep)
as Earl of Ashington(1 ep)
as Ted Austin
as Mac
as Major Osborne
as James Pelly
as King Arthur(2 eps)
as Webb
as Capt. Hartnett (uncredited)(1 ep)
as Fabian of the Yard (uncredited)
as Will Scatlock (uncredited)(2 eps)
as Det. Supt. Robert Fabian(4 eps)
as Inspector Fabian
as Sellars
as Police Driver (uncredited)
as Detective Chief Inspector
as Wilson (uncredited)
as Tallow
as Sgt. Bellamy
as (uncredited)
as Squadron Leader Briarly
as Supt. Crowe
as Gerald Vane
as Lord Steven Wolverbury
as Bill Bryant
as PC 'Jock' Campbell
as Sergeant Odd
as Lt. H. Pennell R.N.
as Sergeant
as Johns
as Jack Wraydon
as Captain Randall
as Journalist (uncredited)
as Lord 'Tiny' Tyneside
as Lt. Travers
as John Smith
as Johnnie Miller
as Madison, tall henchman
as Harry Stone
as Ronald Bruce
as Roger Manning
as Dancer
as Donald Carson
as Murray
as Jamie Turner
as Don Chinko