William Chubb

as Professor Serebryakov

as Master

as Doctor Laird

as Kieran Tanner (1 episode)

as High Priest (4 episodes)

as Edmund (1 episode)

as Judge Knightley (1 episode)

as Principal Hargreaves

as Quiz Master (1 episode)

as Judge (1 episode)

as The Count

as MI5 Spokesman

as Polonius

as Duke of York

as Dr Marcuson

as Brabantio

as HHJ Briscoe (1 episode)

as Brigadier Mike Reeves

as Chief Constable

as Professor Barry

as Chamberlain

as Manager

as Gendarme

as James Carlson (1 episode)

as Matt Collins