Klaus ( the Vampire Diaries ) - wikipedia Klaus ( the Vampire Diaries ) `` Klaus '' The Vampire Diaries episode Episode no. Season 2 Episode 19 Directed by Joshua Butler Written by Kevin Williamson Julie Plec Production code 2J5269 Original air date April 21, 2011 Guest appearance ( s ) Daniel Gillies ( Elijah Mikaelson ) Joseph Morgan ( Klaus Mikaelson ) Trent Ford ( Trevor ) Dawn Olivieri ( Andie Star ) Lisa Tucker ( Greta Martin ) Gino Anthony Pesi ( Maddox ) Episode chronology ← Previous `` The Last Dance '' Next → `` The Last Day '' The Vampire Diaries ( season 2 ) List of The Vampire Diaries episodes `` Klaus '' is the 19th episode of the second season of The CW television series, The Vampire Diaries and the 41st episode of the series overall. It originally aired on April 21, 2011. The episode was written by Kevin Williamson and Julie Plec and directed by Joshua Butler. Contents 1 Plot 2 Feature music 3 Reception 3.1 Ratings 3.2 Reviews 4 References 5 External links Plot Elijah ( Daniel Gillies ) wakes up in the Salvatore basement after Elena ( Nina Dobrev ) removes the dagger from his body. Elena tries to keep him quiet so Damon ( Ian Somerhalder ) and Stefan ( Paul Wesley ) will not hear him. Elijah needs to get out of the house since he is not invited in, and Elena, to convince him that he can trust her, hands him the dagger. Stefan wakes up the next morning and discovers that Elijah 's body is gone while at the same time, Klaus needs his real body and asks Maddox ( Gino Anthony Pesi ) to take care of it. Stefan calls Elena to see if she is okay and asks her where Elijah is. Elena reassures him that she is fine and that Elijah is with her, asking Stefan to trust her and let her do what she thinks best. Stefan, even though he does not agree with her plan, agrees, making Damon unhappy. Elijah explains to Elena how he and Klaus met Katherine and that Klaus is his brother. Jenna ( Sara Canning ) returns home after all the messages `` Elena '' left her about staying away from Alaric and calls Stefan to ask what is wrong. Stefan goes to meet her, only to find out that Alaric / Klaus is already there waiting for him. Damon goes to Alaric 's apartment with Andy ( Dawn Olivieri ) to see if Katherine is there. When they find her, Damon gives her vervain to drink so that Klaus will not be able to compel her. Elijah continues to tell Elena the story of his family, and he reveals her that the curse of the sun and the moon is fake. Klaus and Elijah made that curse up, but there is another curse that is worse and it is on Klaus. That is the curse Klaus wants to break. At the same time, Alaric / Klaus tells Jenna about vampires but Jenna does not believe him. When she attempts to leave, Klaus tries to stop her, and Stefan attacks Klaus, giving Jenna the opportunity to escape. Stefan calls Elena to let her know that Jenna knows the truth, and Elena leaves Elijah to go to Jenna. In a flashback, we see that Elijah was in love with Katherine back in 1492. Elena tries to calm Jenna down and tells her the whole truth. Then, she goes back to Elijah, asking him to tell her about the curse. Elijah tells her that his mother was unfaithful to his father and Klaus is a brother from another father, a werewolf, something that makes Klaus both a vampire and a werewolf. Klaus wants to break the curse that is upon him so he can reawaken his werewolf side and create an army of hybrids. Since Klaus is both a vampire and a werewolf, Elijah explains Elena that the dagger can not kill him, and they have to try to do it using a witch when Klaus is on transition, a moment that makes him weak. Elena tells him that she knows a witch that can channel the power they need, and Elijah tells her that the curse needs to be broken during a full moon. Through another flashback, we see that Elijah found a way to protect the life of the doppelgänger during the sacrifice, meaning he can protect Elena 's life. Katherine did not know about that ; that is why she ran away from Klaus when she found out what he wanted her for. Elena and Elijah go to the Salvatore house to find Damon and Stefan fighting. Elijah asks for their apology since they tried to kill him ; Stefan apologizes but Damon does not trust Elijah. Stefan explains to Elijah that Damon is angry with him at the moment but he will come around at the end and work with them. The episode ends with Klaus ( Joseph Morgan ) taking his real body back. Feature Music In `` Klaus '' we can hear the songs : `` Compulsion '' by Doves `` Get Some '' by Lykke Li `` Helena Beat '' by Foster the People Reception Ratings In its original American broadcast, `` Klaus '' was watched by 2.70 million ; down by 0.11 from the previous episode. Reviews `` Klaus '' received positive reviews. Carrie Raisler from The A.V. Club gave the episode and A - rating saying that the episode was overall entertaining. `` This show has that makes it great, and that 's guts. Not many shows would have the stones to dismiss their entire season 's mythology as false only a few short weeks before the finale. This demonstrates the writers ' extreme confidence not only in the story they are telling but also the inherent entertainment factor of all the episodes leading up to the big reveal. '' E. Reagan of The TV Chick gave the episode and A - rating saying that it was very informative. `` There was obviously not a ton of plot movement, but some for sure. However, we learned an incredible amount of information. I can honestly say that I did n't see it coming about the Klaus vamp / werewolf thing. Nice work people. '' Steve Marsi from TV Fanatic rated the episode with 5 / 5 saying that the episode was stunning and might have been the best to date. `` ( The episode ) delivered so much mythology, but in a way that did n't come off as forced and certainly did n't feel like a letdown. On the contrary, everything about last night felt epic. '' Diana Steenbergen of IGN rated the episode with 8 / 10 saying that the episode felt like a dump of information `` but as usual, there were plenty of twists and turns to keep our heads spinning. Season 2 is definitely coming to a boil. '' Robin Franson Pruter from Forced Viewing rated the episode with 3 / 4 saying that this episode was not easy. `` There are complex things going on with the characters, with the relationships between brothers, and with the mythology of the show. It demands and rewards close attention. The episode is not perfect. Someone searching for flaws can find a number of big ones. But it 's compelling, and it builds anticipation for the final showdown with Klaus, which is what it needs to do. '' References Jump up ^ `` The Vampire Diaries Season 2 Episode 19 : `` Klaus '' Music ``. TV Fanatic. Retrieved October 15, 2014. Jump up ^ Seidman, Robert ( April 22, 2011 ). `` Thursday Final Ratings : ' Vampire Diaries, ' ' American Idol ' Adjusted Up ; ' Community, ' ' Parks & Recreation ' Down ''. TV by the Numbers. Retrieved October 15, 2014. Jump up ^ Raisler, Carrie ( April 21, 2011 ). `` The Vampire Diaries : `` Klaus '' ``. The A.V. Club. Retrieved October 15, 2014. Jump up ^ E. Reagan ( April 22, 2011 ). `` REVIEW : The Vampire Diaries `` Klaus '' ``. The TV Chick. Retrieved October 15, 2014. Jump up ^ Marsi, Steve ( April 22, 2011 ). `` The Vampire Diaries Review : `` Klaus '' ``. TV Fanatic. Retrieved October 15, 2014. Jump up ^ Steenbergen, Diana ( April 22, 2011 ). `` The Vampire Diaries : `` Klaus '' Review ``. IGN. Retrieved October 15, 2014. Jump up ^ Franson Pruter, Robin ( November 15, 2013 ). `` The Vampire Diaries, S2E19 : Klaus ''. Forced Viewing. Archived from the original on April 29, 2015. Retrieved October 15, 2014. External links ThinkHeroTV 's review for `` Klaus '' on YouTube The Vampire Diaries Episodes Season 1 `` Pilot '' `` The Night of the Comet '' `` Friday Night Bites '' `` Family Ties '' `` You 're Undead to Me '' `` Lost Girls '' `` Haunted '' `` 162 Candles '' `` History Repeating '' `` The Turning Point '' `` Bloodlines '' `` Unpleasantville '' `` Children of the Damned '' `` Fool Me Once '' `` A Few Good Men '' `` There Goes the Neighborhood '' `` Let the Right One In '' `` Under Control '' `` Miss Mystic Falls '' `` Blood Brothers '' `` Isobel '' `` Founder 's Day '' Season 2 `` The Return '' `` Brave New World '' `` Bad Moon Rising '' `` Memory Lane '' `` Kill or Be Killed '' `` Plan B '' `` Masquerade '' `` Rose '' `` Katerina '' `` The Sacrifice '' `` By the Light of the Moon '' `` The Descent '' `` Daddy Issues '' `` Crying Wolf '' `` The Dinner Party '' `` The House Guest '' `` Know Thy Enemy '' `` The Last Dance '' `` Klaus '' `` The Last Day '' `` The Sun Also Rises '' `` As I Lay Dying '' Season 3 `` The Birthday '' `` The Hybrid '' `` The End of the Affair '' `` Disturbing Behavior '' `` The Reckoning '' `` Smells Like Teen Spirit '' `` Ghost World '' `` Ordinary People '' `` Homecoming '' `` The New Deal '' `` Our Town '' `` The Ties That Bind '' `` Bringing Out the Dead '' `` Dangerous Liaisons '' `` All My Children '' `` The Departed '' Season 4 `` Growing Pains '' `` Memorial '' `` The Rager '' `` The Five '' `` The Killer '' `` We All Go a Little Mad Sometimes '' `` My Brother 's Keeper '' `` We 'll Always Have Bourbon Street '' `` O Come, All Ye Faithful '' `` After School Special '' `` Catch Me If You Can '' `` A View to a Kill '' Season 5 `` I Know What You Did Last Summer '' `` True Lies '' `` Original Sin '' `` For Whom the Bell Tolls '' `` Monster 's Ball '' `` Handle with Care '' `` Death and the Maiden '' `` Dead Man on Campus '' `` The Cell '' `` Fifty Shades of Grayson '' `` 500 Years of Solitude '' `` The Devil Inside '' `` Total Eclipse of the Heart '' `` No Exit '' `` Gone Girl '' `` While You Were Sleeping '' `` Rescue Me '' `` Resident Evil '' `` Man on Fire '' `` What Lies Beneath '' `` Promised Land '' `` Home '' Season 6 `` I 'll Remember '' `` Yellow Ledbetter '' `` Welcome to Paradise '' `` Black Hole Sun '' `` The World Has Turned and Left Me Here '' `` The More You Ignore Me, the Closer I Get '' `` Do You Remember the First Time ? '' `` Fade Into You '' `` I Alone '' Season 7 `` Gods and Monsters '' Season 8 `` I Was Feeling Epic '' Characters Elena Gilbert Katherine Pierce Stefan Salvatore Damon Salvatore Related Awards and nominations Novel series L.J. Smith Original Vampires The Originals episodes season 1 5 characters Retrieved from `` https://en.wikipedia.org/w/index.php?title=Klaus_(The_Vampire_Diaries)&oldid=804224262 '' Categories : 2011 American television episodes The Vampire Diaries ( season 2 ) episodes Talk Contents About Wikipedia Add links This page was last edited on 7 October 2017, at 15 : 49. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: when does klaus come in the vampire diaries
Answer: 19th episode of the second season