Katherine Pierce

Katerina Petrova a.k.a. '''

Katherine Pierce, '''is a vampire and former lover to both the Salvatore brothers Damon and Stefan. Katerina first appeared in recurring flashbacks, depicting her physically romantic relationship with the Salvatore brothers, eventually turning them both into vampires, but was captured by the townspeople of Mystic Falls to be destroyed. To Klaus's knowledge she is a part of the Petrova Doppelgängers.

However, behind her sweet nature, Katherine revealed her deceptive side and escaped her would-be death with the help of George Lockwood. 145 years later, Katherine returned to Mystic Falls and started toying with the Salvatores again, cutting off her loose ends by destroying the tomb vampires. Katherine was deeply hated for the murder and the turning of Caroline Forbes into a vampire, and using a werewolf, Mason Lockwood, to retrieve the moonstone, an essential element to break The Sun and the Moon Curse. Katherine is exposed as a doppelgänger who spent her immortal life fleeing from an Original named Klaus. And although she chose Stefan over Damon, she promised John Gilbert that she would help protect her descendant Elena Gilbert, who is the center of the Salvatore brothers hearts. She is initially portrayed as the main antagonist, but the arrival of Elijah, an Original vampire, diminishes her attitude and frightens her with the knowledge of Klaus. Her current whereabouts are still unknown since the Homecoming.

Katerina Petrova also known as Katherine Pierce is a member of the Petrova Family.