Klaus is one of the oldest in the Mickhaelson family. His father always hated him because he was both breeds. A vampire. And a lycan. Klaus grew up becoming cold towards everyone and never showing kindness. He always showed pure evil. He loved his younger sister Rebekah a lot though, and respected his brother Elijah. All three got along very well. They where also known as the "Originals" and they had very good wealth (Lots of money). Their mother is a witch and their father a vampire. 