I know what you mean. I think Misfits could handle the change of characters though. The whole premise is metamorphosis.I *loved* the first two series. It's a case of diminishing returns for me now the original line up is gone. Still watch it though. Fifth and final series imminent.
"I f**king hate Nazis" - classic line.
I've never watched more than the first two seasons of Skins. Nicholas Hoult was that show.