Barry Linehan

as Henry Hotson (4 episodes)

as Chesterton

as Dublin Castle Manager

as Mr. Wellbeloved (1 episode)

as Platt

as Silas Brown (1 episode)

as Silas Brown

as Thomas Weston (1 episode)

as Quiz Panel Judge

as Bull Donohue

as Asylum Gatekeeper

as Policeman (Mobile)

as Insp. Hale (1 episode)

as Cummins

as Chief Prison Officer

as Mockers (3 episodes)

as Miller (7 episodes)

as Bordenave (5 episodes)

as Van Driver (1 episode)

as Inspector Scott (6 episodes)

as Chatty Corner (2 episodes)

as Lampeter (1 episode)

as Wally Ralph (1 episode)

as Sheriff (1 episode), as Chatty Corner (2 episodes)

as Jack Morgan (1 episode)