Mr. Spenlow (2 episodes)

(1 episode)

Narrator (1 episode)

Charley

Douglas (1 episode)

Catesby / Ely (voice) (1 episode)

Thesp (10 episodes)

(1 episode)

Peter Thomas

Silence (1 episode)

(32 episodes)

Professor George Bunn (4 episodes)

Dr. John Anderson (6 episodes)

Chief Superintendent Strange (28 episodes)

Judge

Mr. McAllister (2 episodes)

Inspector (5 episodes)

Arthur Dumpton (6 episodes)

Det. Sgt. Evans (1 episode)

William Strahan

Roebuck Ramsden

Nicholas Petrie

(1 episode)

Fairbrother

Superintendent Rafferty (7 episodes)

Granville Bennett (6 episodes)

Sir Arthur Conan Doyle

Sir Arthur Conan Doyle (1 episode)

Frank Benge (11 episodes)

Det Insp Bead

Kolmaar (1 episode)

Mr. Lomax

Queen's Counsel

Jonas Bradlaw (2 episodes)

James Johns

Harry S. Bloomburger

Robert

Dai Owen (voice) (1 episode)

Dai Owen (3 episodes)

Sam McGuire (2 episodes)

Dr. Friendman (1 episode)

Harry S. Bloomberger (1 episode)

Dr. Friendman

Robert Koch (2 episodes)

Superintendent Carson (3 episodes)

Supt. Cramer (1 episode)

Sir George Crofts

Major Hawkins (1 episode)

Inspector Brockett

(1 episode)

Sinclair

(1 episode)

Sergeant

Angus (1 episode)

PC Thorpe (1 episode)

Squire

(54 episodes)

(1 episode)

Sparta (1 episode)

Town Crier (1 episode)

Cheeseman (1 episode)

Petroc (1 episode)