James Grout

as Mr. Spenlow

as Charley

as Douglas

as Thesp

as Catesby / Ely (voice)

as Peter Thomas

as Silence

as Dr. John Anderson

as Chief Superintendent Strange

as Professor George Bunn

as Judge

as Mr McAllister

as Inspector

as Arthur Dumpton

as Narrator

as William Strahan

as Mortimer

as Roebuck Ramsden

as Nicholas Petrie

as William Rowland

as Det. Sgt. Evans

as Fairbrother

as Big Hal

as Gowing

as Superintendent Rafferty

as CI Russell

as Sir Arthur Conan Doyle

as Frank Benge

as Granville Bennett

as Det Insp Bead

as Sir Arthur Conan Doyle

as Mr. Lomax

as Queen's Counsel

as Mr Lomax

as Jonas Bradlaw

as Joseph Fry

as James Johns

as Harry S. Bloomburger

as Lord George Kemp

as Mr. Justice Ollie Oliphant

as Robert

as Dai Owen (voice)

as Dai Owen

as Sam McGuire

as Dr. Friendman

as Robert Koch

as Dr. Friendman

as Harry S. Bloomberger

as Sgt. Fred Mullins

as James Johns

as Queen's Counsel

as Supt. Cramer

as Superintendent Carson

as Sir George Crofts

as Kolmaar

as Inspector Brockett

as Sinclair

as Hobbs

as Major Hawkins

as Sergeant

as Angus

as PC Thorpe

as Squire

as Dr. Maurice Owen

as Banquo

as Sparta

as Squire

as Town Crier

as Cheeseman

as Dr. Charles Lloyd

as Petroc

as Chief Insp. Prescott