Other guest stars were Bamber Gascoigne as the school's headmaster; Johnny Ball as a maths teacher in another school; Michael Cronin as "Bullet" Baxter (the role that he had played in "Grange Hill"); William Woollard as science teacher Mr Woollard; Elizabeth Berrington as a school inspector; Ron Atkinson as the manager of an opposing football team; Stephen Lewis playing a coach driver very similar to his character Inspector Blake in "On The Buses"; Jim Bowen as a militant trade unionist; and Pam Ayres as herself.