Starring: Terrence Hardiman, Frances Amey, Gunnar Cauthery, Thomas Szekeres
Episode #1.6 - S1-E6
Visible crew/equipment: When the Demon Headmaster is travelling by helicopter to 10 Downing Street at one point there is a close-up shot of his face and you can see a square light screen reflected in his glasses. There's no excuse for this since he's supposed to be high in the air. (00:21:23)
Episode #1.1 - S1-E1
Visible crew/equipment: When Lloyd and Harvey are studying in the library (just before Harvey says "what do you think they're doing?") the boom microphone drops down into the frame above Lloyd's head. (00:14:17)
Trivia: "The Demon Headmaster" is actually only a Headmaster for the first three episodes of Series 1.