I love Tony, especially in series 1, i love how crazy and manic he really is, he was pretty screwed up. I liked him in series 2 but he got a little dull because he seemed to become regular and focus on being with Chelle. I did enjoy his rebonding with Sid though, I love those two to bits
Cassie and Chris are probably my faves

I love them both for the similar reasons, they are awesoem characters
That's cool, you seem to like most of them really, that's really. How much have you watched then? I don't want to spoil and I have a habbit of rabbiting on and accidentally doing this