Richard Coyle

as Dr. Falk

as Mr. Gardiner (7 episodes)

as Quincy Harrington

as Jules (6 episodes)

as Reagan (8 episodes)

as Robert Wallace (4 episodes)

as Aberforth Dumbledore

as Caiaphas

as Father Blackwood (36 episodes)

as Thom Blackwood (6 episodes)

as Peter (4 episodes)

as Paul Sabine (8 episodes)

as Caiaphas (12 episodes)

as Tom Lowe (9 episodes)

as Oliver

as Dr O’Donnell (3 episodes)

as Ray Deans (3 episodes)

as Frank

as Garda Ciarán O'Shea

as Wallace

as William Winthrop

as Sebastian Ganz

as Moist Von Lipwig

as Simon Fischer (1 episode)

as Moist Von Lipwig (2 episodes)