Ozzie is the proverbial bad boy. At school he was best mates with Tom and had a nice little earner selling cigarettes to younger pupils. Now he runs the local nightclub after being shown the door at Grange Hill.

Ozzie is actually quite an intelligent boy; he doesn't behave like your average bully as he knows this will bring unwated attention. Instead he wages calculated, psychological warfare on those who cross him.

After Mr Hankin confiscated his stash of cigarettes, Ozzie began a campaign of fear against him, breaking into his house and vandalising his car. Mr Hankin thought Danny was responsible and even struck up a friendship with Ozzie. After following Danny into the cellar, Mr Hankin realised Ozzie was his tormentor. Ozzie was arrested after trying to bribe his way out of trouble.

This year, Ozzie returned to Northam as manager of The Hub. In order to secure promotion, he successfully wooed Vikki away from Danny. She was upset to be the subject of a bet but Ozzie realised his feelings for her were genuine.

Nathan was Grange Hill's resident cool dude - extrovert, showing off at every opportunity! But underneath that mischievous exterior is a heart of gold. Nathan has now left school and is studying at Southern Counties University. His mother is a journalist. Nathan has always been a ladies' man but had little success on the romantic front until he met Briony.

We first met Nathan in 1997. He was a friend of Andy Phillips (Lauren's brother). Nathan enrolled into Year 11 the following year. He turned Mr Brisley's living art show into a rave, and all hell broke loose! In the Lower Sixth Nathan bought into Kamal's car. He failed his driving test but covered up the fact with his usual bravado. The Upper Sixth and Nathan auditioned for a TV presenter's job which Colin got. He fell for Colin's co-presenter, Briony, and after a false start they became an item.

Despite having left school, Nathan continued to hang out with the sixth formers in 2001 and sang with the band at the talent show. Now at university, Nathan has been cheating on Briony for another girl. Briony was devastated and ended their relationship.

We first met Ray in 1991 when he joined the visit to Dartmoor. Once there, he dressed as "the Mad Axeman" to play a joke on Matthew Pearson. In 1992 Ray was annoyed with Justine for dating Liam, while Grange Hill and St Joe's were caught up in bitter rivalry. When Liam was killed Ray helped Justine unmask Ms Janowitz as the censor of her interview with Mr Hargreaves. In 1993 Ray was stunned to discover Kenny's girlfriend, Ruth, and Kenny announced plans to marry her. Justine helped Ray organise the stag night and wedding.

Ray returned in 1997, running The Arches. He gave Joanna a waitressing job but sacked her when she turned up drunk. The following year Ray held a karaoke night at The Arches. The next day Ray was shocked to find Joanna unconscious by the dustbins. Following the death of Judi in 1999, Ray gave Alec a job at The Arches. This infuriated Wayne, who picketed the cafe demanding Alec's sacking. In Series 24, Ray helped the sixth formers nail the racists who trashed the band's equipment and caused a fracas in The Arches.The villains exacted violent revenge on Ray, leaving him for dead.

Although The Arches is now closed, Ray returned to Grange Hill to help Lisa through her trauma. He also went to the staff barbecue and Mr Robson's wedding reception.

Michael is the son Mrs Holmes was forced to give up when he was a baby. After 30 years he has only just been reunited with her. Michael is a geography teacher who works for a supply agency; he's also engaged to Miss Fraser, much to his mother's disgust.

Gossip spread when Mrs Holmes was spotted meeting Michael in secret. Everyone thought he was her toyboy, but Margaret then introduced him to the staff. At the end of Series 24 Michael got engaged to Miss Fraser. Mrs Holmes became jealous, fearing he'd walk out of her life again. This year, Michael is doing supply work at Grange Hill. He's frustrated by his mum's refusal to accept his relationshop with Emily. When Margaret has a nervous breakdown, Michael goes to look after her and the wedding is off.