Katerina Petrova

Katerina Petrova
Biographical information
Status	Deceased
Species	Doppelgänger (Originally) Witch (Formerly) Vampire (Niklaus' Βloodline)(Formerly) Passenger (Formerly) Ghost (Currently)
Gender	Female
Family information
Family Members	Nadia Petrova † (Daughter) Mrs. Petrova † Mr. Petrova †
Supernatural information
Cause of death	Hanging (1st time) Rapid Aging (2nd time; body) Stabbed with the Traveler Knife (3rd time; spirit)
Killed by	Herself (1st time) Post-Cure Effects (2nd time; body) Stefan Salvatore (3rd time; spirit)

Katerina Petrova (Also known; Katherine Pierce) was a witch, the third known Petrova Doppelgänger. She was the main antagonist of Season One, Season Two, she later returned in the Fifth Season as one of the main characters.