The character Klaus was created by writer Robert Kirkman and artist Tony Moore for the comic series 'The Walking Dead'.
Klaus first appeared in 'The Walking Dead' comic series issue #12, marking his debut in the franchise.
Klaus was adapted into the television series 'The Walking Dead', portrayed by actor Joseph Gatt, expanding his reach to a wider audience.
The character Klaus appeared as a non-playable character in 'The Walking Dead' video game by Telltale Games, further diversifying the character's media presence.
Klaus Mikaelson is born in the 10th century in the Viking settlement in Scandinavia.
Klaus becomes the first known vampire-werewolf hybrid after being cursed by his mother and father’s werewolf bloodline mixing with the vampire bloodline.
Klaus, along with his siblings Elijah, Rebekah, Kol, and Finn, form the Original vampire family.
Klaus completes the curse that affects vampire and werewolf hybrids, cursing them to lose their powers on the full moon nights.
Klaus influences the early settlers of Mystic Falls, Virginia, shaping its history and vampire lore.
Centuries later, Klaus returns to Mystic Falls to reclaim his power and protect his family, setting the events of The Vampire Diaries and The Originals into motion.
Klaus kills his own father Mikael in an intense confrontation to protect his siblings and assert his dominance.
Klaus establishes a powerful vampire empire in New Orleans, consolidating his power and influence.
Klaus sacrifices himself to save his daughter Hope Mikaelson, ensuring her safety and the survival of his bloodline.
