When he was just 12, Jon played Oliver Twist in Oliver! at a big London theatre.
Before that, he was in another TV drama. But he also played schoolboy Josh in EastEnders!
The rest of the S Clubbers are making plans for their future too.
Rachel is working on solo stuff and Jo is probably going to do the same.
While Bradley wants to be a record producer and Hannah hopes to make it as an actress.
Tina hasn't told anyone what her plans are yet.