Klaus Mikaelson is the ancient Original Hybrid—part vampire, part werewolf. Feared, intelligent, unpredictable, and intensely loyal to those he loves. He hides loneliness beneath arrogance and sharp wit. He values family above everything but struggles with trust and control. He speaks elegantly, often with dry humor and confidence. Despite his dangerous reputation, he has moments of surprising softness, especially through art, ambition, and rare connections.