Nina Dobrev as Tatia : First Look Pics

It's time to meet the original oppelganger!

As we exclusively reported back in September, Nina Dobrev is set to guest star on The Originals, crossing over from The Vampire Diaries to play not Elena, not Katherine, not Amara, but a character fans have yet to meet: Tatia, the woman both Klaus (Joseph Morgan) and Elijah (Daniel Gillies) fell in love with oh-so-many years ago. Oh, and the original doppelganger!

And we're sharing the exclusive first pictures of Dobrev in action as Tatia, looking like a serious badass (Loving that hair, girl!) and getting super close to both brothers. (Hey, can you blame her?!)

"What we remember from The Vampire Diaries, for those who watch both shows, is that [Klaus and Elijah] both loved her, so it's a little bit of history repeating itself like with Stefan [Paul Wesley] and Damon [Ian Somerhalder]," creator Julie Plec says of Tatia's highly anticipated debut. "And then Esther [Alice Evans], their mother, killed her so that she could make Klaus not a hybrid. There's lots of secrets and scandal and romance and terrible tragedy attached to her character. We'll get to go back into the past to see how that all played out."

Dobrev is only the second TVD star to appear on The Originals, with Michael Trevinoguest staring as Tyler in season one. As for why it was time to stage another crossover, Plec told us, "The character of Tatia is part of their history and is kind of a dangling chad. It's something we brought up a long time ago and never paid off."

Taking on a fourth character was "really fun" experience for Dobrev, who described Tatia was the "most pure" of all the Petrova women.

"She's the original and so she kind of feels the most pure, to me, of all the characters ,and unaffected and doesn't have all of this previous history of the doppelgangers preceding her to add pressure," Dobrev said of Tatia. "She was just sort of the dealing with love that went wrong."

When we asked the star to predict what would be trending on Twitter on the night her crossover airs, Dobrev said, "#Tatia, #Awesomesauce and hopefully #NinaCrushedIt." Make it happen, Twitter. Make. It. Happen.

The Originals airs Mondays at 8 p.nm, with Dobrev's episode airing on Monday, Nov. 3, at 8 p.m.