as Sir Cole
as Sir Nigel
as Grandpa Robert
as Jack Ryder(3 eps)
as Sergeant Spragg
as Magnus(1 ep)
as Robert
as Duncan
as George
as Sorcerer(1 ep)
as Bill
as Isaiah Miller
as Professor George Challenger
as Professor George Challenger(66 eps)
as Professor Challenger
as Det. Hudson
as Culann(1 ep)
as Brach(1 ep)
as Admiral McCutcheon(2 eps)
as Henry Doak(1 ep)
as Talmadeus(1 ep)
as Commissioner(1 ep)
as Gekkus(1 ep)
as Ajax(1 ep)
as Odin(2 eps)
as Higgins(1 ep)
as Captain Ezra King(1 ep)
as Chad(1 ep)
as Kendall(2 eps)
as Finlay Keats(245 eps)
as Lew Murdoch(13 eps)
as Repo Man
as Tanya's Father
as Sam Jamieson
as Detective Inspector Nolan
as Captain Bloom(4 eps)
as Fiance