First broadcast 29th November 1968.<br /><br />A violent pupil returns to the school.<br /><br />John Alderton - Bernard Hedges<br />Deryck Guyler - Norman Potter<br />Noel Howlett - Mr. Cromwell<br />Joan Sanderson - Doris Ewell<br />Richard Davies - Mr. Price<br />Erik Chitty - Mr. Smith<br />Liz Gebhardt - Maureen Bullock<br />Penny Spencer - Sharon Eversleigh<br />Peter Cleall - Eric Duffy<br />Malcolm McFee - Peter Craven<br />Peter Denyer - Dennis Dunstable<br />David Barry - Frankie Abbott<br />Ann Lancaster - Mrs. Pearce<br />Winifred Braemar - Mrs. Armitage<br />Fred Beauman - Uncle Niklos (as Frederick Beauman)<br />Roger Carey - Abapellogopholis<br />Alan Mason - Fireman<br />Tony Alleff - Niklos' Sidekick (as Tony Allef)<br />Alister Williamson - Mr. Duffy<br />George Georghiou - Pupil in checked shirt
