Red Door

Red Door is the fifth episode of the second season of The Originals and the twenty-seventh episode of the series.

Summary
THE VAMPIRE DIARIES’ NINA DOBREV APPEARS IN FLASHBACKS AS TATIA, THE ORIGINAL DOPPELGANGER — In order to show Elijah that her plan is what’s best for him, Esther forces him to relive a time long ago when he loved a young woman named Tatia (guest star Nina Dobrev). With the help of Marcel, Hayley is determined to find Elijah, who has gone missing, but is torn when she discovers that Klaus is also in trouble. Elsewhere, Cami finds herself in a dangerous situation when Mikael takes her hostage as a way to lure Klaus to him, and Davina makes an upsetting discovery about Kaleb’s true identity. Lastly, a violent confrontation ensues when Klaus comes face-to-face with Mikael.

Main Cast

 * Joseph Morgan as Niklaus Mikaelson
 * Daniel Gillies as Elijah Mikaelson
 * Phoebe Tonkin as Hayley Marshall
 * Charles Michael Davis as Marcel Gerard
 * Leah Pipes as Camille O'Connell
 * Danielle Campbell as Davina Claire

Special Guest Star

 * Nina Dobrev as Tatia (flashback)

Recurring Cast

 * Sebastian Roché as Mikael
 * Daniel Sharman as Kaleb/Kol Mikaelson
 * Natalie Dreyfuss as Cassie/Esther

Trivia

 * There will be a fight sequence with Mikael in episode 5.
 * This is Nina Dobrev's first appearance on The Originals.
 * This is Nina Dobrev's second time on the TVD/TO where she plays one character that isn't Elena in an episode, having previously played only Katherine during a 3-episode stint during TVD season five.
 * Tatia is the second Doppelgänger shown in the TVD/TO universe who has no interaction of any kind with the doppelgänger(s) who proceeded her.
 * The first doppelganger shown in the TVD/TO universe to do this is Tom Avery, who appeared in Season Five of TVD.
 * This episode is focused on Elijah. This marks Daniel Gillies' 50th appearance as the character.
 * More generally, every time Mikael is on screen, he’s giving some sort of epic speech. What’s your favorite Mikael moment or speech? There’s a scene that I did in episode 5 (of season 2) with another cast member that I particularly like because I wasn’t too sure on how to do the scene and something magical came out of it, this whole raw emotion and anger came out of it. It was truly one of the most interesting moments I’ve had as Mikael in terms of bridging the gap between anger and emotion, and it’s a really kind of a heartbreaking scene. For me, something came out and I truly felt extremely emotional after doing it and it was a great moment. I truly love that moment.
 * Any more scoop on Originals-Vampire Diaries crossover? - Lisa After we heard that Nina Dobrev will be making an appearance as Tatia, we pressed Originals star Joseph Morgan for details. And it sounds like a very juicy flashback involving Tatia, Esther and her two sons. "You're going to get insight into Klaus and Esther's relationship, but also Elijah and Esther's relationship and what happened back then," Morgan said. "We're grateful for Nina coming over. So we could tell that story because I think it needed to be told and it definitely informed who the brothers are today."
 * Question; Any intel on Nina Dobrev’s crossover to The Originals? - Jacob Ausiello: How’s this intel for you, Jacob? When asked if Tatia’s scenes with Elijah and Klaus would be "steamy", or if they’d be all talk, Nina Dobrev answered, "A little bit of both, in different capacities. I’m always going to be in a love triangle. I can’t escape it, so I might as well just accept it".
 * It appears that Davina will discover that Kaleb is really Kol. It is unknown if she knows much about Kol from Marcel, but it is possible she will react badly simply because of his relationship to Klaus and Elijah, being their younger brother and that he lied.
 * However, it is also possible that she will only simply discover that "Kaleb" is just inhabiting a body, and that he is trapped, without actually learning of his true identity; that he is an Original Vampire.

Continuity

 * This episode marks the first appearance of Tatia. She was first mentioned in The Reckoning and her name was revealed in Bringing Out The Dead.
 * Tatia is the third Doppleganger of Amara's that Nina Dobrev has played to date after Elena and Katherine. Also the first who isn't a true Immotal like Amara or immortal vampire like Elena and Katherine just a human.