Guest Stars Layton Williams as Stephen Carmichael Charlie Wernham as Mitchell Harper Kae Alexander as Jing Chow Ethan Lawrence as Joe Poulter Nikki Runeckles as Chantelle Parsons Jack Binstead as Rem Dogg Jack Bence as Frank Grayson Leila Hoffman as Mrs Olive Mollinson Jason Barnett as Mr Smith Susy Kane as Mrs Lythgoe Jake Davies as Glitorish Pupil Liz Sutherland as Librarian Gilles Geary as Dirk