Klaus Mikaelson is a prominent character from the television series The Originals, which is a spin-off of The Vampire Diaries. He is a hybrid of vampire and werewolf, making him one of the most powerful beings in the supernatural world. Klaus is known for his complex personality, often oscillating between villainy and moments of vulnerability, particularly in relation to his family. As the original vampire-werewolf hybrid, Klaus seeks to protect his family while also grappling with his darker impulses. His character is deeply intertwined with themes of loyalty, betrayal, and redemption, making him a compelling figure in the series. His relationships with characters like Elijah Mikaelson and Caroline Forbes further enrich his narrative arc.