Michael Cronin debuts as Jeff "Bullet" Baxter. He was named in tribute to Steely Dan and Doobie Brothers guitarist Jeff "Skunk" Baxter.
Debuts of Lindy Brill as Cathy Hargreaves; Rudi Davies (billed as Ruth Davies) as Penny Lewis; Linda Slater as Susi McMahon; Vivian Mann as Antoni Karamonopolis; Paul Miller as Simon Shaw; Alan Gibson as Joey Singer; Sean Arnold as head teacher Mr Llewellyn; Philomena McDonagh as art teacher June Summers and Michael Cronin as games teacher Jeff "Bullet" Baxter.
Actor Abigail Brown now billed as Abigail Arundel.
Second of four appearances between 1978 and 1993 by Brenda Cavendish as Mrs Schubert/P.E. Teacher/Mrs Cresswell.
This episode firmly establishes Alan's surname as being Humphries. It was previously given as Turner in Episode #1.1 (1978) and Hargreaves in Episode #1.4 (1978).