Serena

Serena is a vampire, she doesn't seem to have or want any friends apart from Rolf however she does care about what people think of her as seen in Banned, she can be very mean and will make someones life a misery if she doesn't like them.

Friends
Rolf-He is her werewolf boyfriend,they are always together and both can be very mean.

Summer- Serena and Summer don't like each other, Serena is always threatning Summer that she will hurt her and the closest they have ever got is working together to get Serena and Rolf unbanned from the resterant.

Heidi- Serena doesn't like Heidi much,this is mostly because she is friends with Summer.

Bobby-Serena doesn't like Bobby,this is also because he is friends with Summer. Serena is sexy  mean siotic  vampire.