Saffron Coomber as Sapphire,
Amy Leigh Hickman as Carmen
Noah Marullo as Gus.
Richard Wisker (represented by On It Artists) from Essex (previously seen in Law and Order:UK) is Liam who is like the Artful Dodger without the pick-pocketing!
Christopher landed the role of Frank after the BBC emailed his school in search of actors. He said: "I've always been interested in acting and was in every play at school. Being in Tracy Beaker has been an unbelievable experience.
"I couldn't ask for better people to work with. I'm going to sixth form to get my grades and then I'm hoping to have a career in acting. Being in films is my main goal but I'd also like to be involved in script writing."
John Bell plays Toby, 11, an only child from quite a posh background who's parents were killed in a car crash.
Kelly Management) is from Kent and is an experienced young actress who made her debut TV appearance in Eastenders.