Shows should not be considered similar just because they are put out by the BBC. Thats like saying I hear you liked Firefly on FOX. You should also watch Gilmore Girls from FOX networks too.
I was looking for shows similar to Misfits and it suggested Peepshow, Qi, The IT Crowd and Life on Mars. I have my doubts that these shows are similar to a show about a group of teenagers with stupid superpowers that constantly fuck up, get people around them killed and kill their probation workers.