Stuart Devenie

as Wes Alderston (1 episode)

as Cormac (1 episode)

as Dr. Wallace

as Imperious

as Jon Ellison

as Governor Croque (22 episodes)

as Elmer

as Museum Curator

as Magistrate (1 episode), as Kernunnos (2 episodes), as Count von Verminhaven (1 episode)

as Mr. O’Shaunessy (Bald Man) (voice) (1 episode), as Imperious (voice) (9 episodes), as Imperious / Black Tribunal (voice) (2 episodes)

as Father McGruder

as Hamish MacMillan

as Sebastian / Dr. Quack / Daisy the Cow / Sandy the Chicken (voice)

as Jeremy Carp (1 episode)