Klaus is a werewolf/vampire Hybrid. This means, along with being an original vampire, Klaus is also a werewolf. He is the half brother of Elijah and is the reason that vampires and werewolf believe there is a sun and moon curse. In actuality, Klaus is the only one who has been cursed by an Aztec shaman because he is both a vampire and werewolf.

He met Katerina Petrova (Katherine) in the late 1400s, and plans to sacrifice her to break the curse. He has to use Katherine as the sacrifice since it was the sacrifice of her ancestor that was used in the creation of the curse.

She became a vampire when trying to escape him. When he finds out about Elena's existence, he becomes obsessed with her and plans on using her for the sacrifice. Along with forcing Katherine to turn her Aunt Jenna into a vampire as a sacrifice.

Season 2 ends with Bonnie nearly killing Klaus, but Elijah stopping it when he finds out the he can bring back his family if he saves Klaus.

Klaus Quotes

He's your first love. I intend to be your last. However long it takes.

Klaus [to Caroline]

You build your army so big that no one will dare pick a fight.


Vampire Diaries Quotes

Damon: You know what they are? Children. Like lighting a candle's going to make everything OK, or even saying a prayer. Or pretending Elena's not going to end up just like the rest of us murdering vampires. Stupid, delusional, exasperating little children. And I know what you're going to say: 'It makes them feel better, Damon.' So what? For how long? A minute, a day? What difference does it make? Because in the end, when you lose somebody, every candle, every prayer is not going to make up for the fact that the only thing you have left is hole in your life where that somebody that you cared about used to be. And a rock with a birthday carved into it that I'm pretty sure is wrong. So thanks, friend. Thanks for leaving me here to babysit. Because I should be long gone by now. I didn't get the girl, remember? I'm just stuck here fighting my brother and taking care of the kids. You owe me big.
Alaric: I miss you too, buddy.

We met and we talked and it was epic. But the sun came up and reality set in.