Mr. James - Jo's father
Colas
Colas (as Sir Cedric Hardwicke) (1 episode)
Simon Polk (1 episode)
John Busch (1 episode)
Fergusson
Professor Crayton (26 episodes)
Self - Nominee (1 episode)
Company Vice President J.R. Williams (1 episode)
Dr. Umlauf (1 episode)
Sir Alaric (1 episode)
Doc Saunders (as Sir Cedric Hardwicke)
High Judge
Lord Hertford (1 episode)
Francis Cromarty
Mr. Princey (1 episode)
John Anderson (1 episode)
Mr. Carew
Tristan
Mr. Edgar Carrington
Priam
Sir George (1 episode)
Ruggieri
King Edward IV of England
Mr. George Utterson
The Inca (1 episode)
Professor Robertson (1 episode)
Mr. Utterson (1 episode)
Sir Francis Brittain (1 episode)
Clifton Lattimer (1 episode)
Danielson (1 episode)
Dr, Martin Crandall (1 episode)
Prologue Speaker
Commentary (voice)
Tiberius Caesar
Gov. Phillip
Robert Malcolm (1 episode)
Captain Francis Barclay
Father Goron
Dr. Karl Strolin
Bernand
Self (1 episode)
Self - Panelist (1 episode)
Nicholas Radcliffe
Governor
Arthur Winslow
Mr. Hyde
Dr. James Libbard
Mr. Henry Kentley
Grand Duke
Frederick Alexander (as Sir Cedric Hardwicke)v
Julian Wilde
Inspector Orpington
Ralph Nickleby
Lord Belmont
Dr. Albert Condor
Dr. Jim Miller
Narrator (voice)
Monsignor at Tweedside
Senator Henry Cabot Lodge
Robert Bonting
Admiral
Father Sebastian
Col. Lanser
Mr. Dabb
Director
Admiral Bowen
Conrad Stauffer
Dr. Ludwig Frankenstein / Dr. Henry Frankenstein (ghostly image)
Lord Warrick
General McLaidlaw
l'évêque Coombes
Mr. Jones
Fleetwood Peyton
Dr. Thomas Arnold
Richard Cobb
Dr. David Livingstone
Mr. Brink
Allan Quartermain
Dean Harcourt
Mr. Baxley
Earl of Warwick
Theotocopulos
David Garrick
Marquis of Steyne
Bishop Bienvenue (as Sir Cedric Hardwicke)
Dr. Meyer Isaacson
Max Till
Rabbi Gabriel
Gustav Dupont
Charles II
Broughton
Brigadier
Alistair McBane
Captain Alfred Dreyfus
Horatio Nelson