Osian is Stephen’s son, an endearingly naïve young man who lives within the support network of his little family. An only child, he is adored by his mother Rhian, and he in turn idolises his successful, charismatic father. That is until his world comes tumbling down around his ears when he catches Stephen in bed with another woman. This completely dislodges the foundations of everything Osian has ever believed in and drives him into a cycle of depression which culminates in his attempted suicide, and his rescue by Lea. Lea is Osian’s one last glimmer of hope, and he clings on to her for dear life, fantasising that one day she will reciprocate his crush. However Stephen again snatches his dreams when Lea falls for him instead. But instead of being floored by this latest knock, Osian instead makes a new start for himself. He has a new job as a croupier, he’s healthy, he’s happy and he’s independent. He's found an unlikely friend in Mike and his relationship with Kate gives him a new-found confidence. However, this doesn't mean he’s ready to forgive Stephen…