Adelaide Kane as Ana Gilbert/Anastasia Diana Blackthorn
Joseph Morgan as Klaus Mikaelson
Nina Dobrev as Elena Gilbert and Katherine Pierce/ Katarina Petrova
Claire Holt as Rebekah Mikaelson
Candice King as Caroline Forbes
Sara Canning as Jenna Sommers
Kat Graham as Bonnie Bennet
Ian Somerhalder and Paul Wesley as Damon and Stefan Salvatore
Steven R. Mcqueen as Jeremy Gilbert
Nate Buzz or someone else as Kol Mikaelson
Zach Roerig as Matt Donovan
Micheal Trevino as Tyler Lockwood
Josh Dallas as James Blackthorn
Ginnifer Goodwin as Amelia Anderson - Blackthorn
The rest of TVD cast as themselves: