• Genre: Drama
  • Air date: Oct 3, 2013
  • Network: CW





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I Know What You Did Last Summer

For fans, by fans

I Know What You Did Last Summer

I Know What You Did Last Summer is the first episode of the fifth season of The Vampire Diaries and the ninetieth episode of the series.


COLLEGE DAYS - After spending the summer enjoying her passionate relationship with Damon, and making sure that Jeremy is adjusting after his return from the dead, Elena is thrilled to move into the dorm at nearby Whitmore College with her new roommate, Caroline. Still believing that Bonnie has been traveling all summer and will soon join them, Elena and Caroline are surprised when a student named Megan shows up and announces that she will be sharing their dorm room. Katherine makes an unexpected appearance at the Salvatore house and pleads with Damon to help her now that she is human and vulnerable to her enemies. Matt and Rebekah return to Mystic Falls after spending a wild summer in Europe, where they met a mysterious beauty named Nadia. Elena can't shake the feeling that something is wrong with Stefan, and Silas makes a terrifying appearance at the "End of Summer" party in the town square.

The Vampire Diaries - Season 5 Premiere Promo Promo


Main Cast

  • Nina Dobrev as Elena Gilbert/Katherine Pierce
  • Paul Wesley as Stefan Salvatore/Silas
  • Ian Somerhalder as Damon Salvatore
  • Steven R. McQueen as Jeremy Gilbert
  • Kat Graham as Bonnie Bennett
  • Candice Accola as Caroline Forbes
  • Zach Roerig as Matt Donovan
  • Michael Trevino as Tyler Lockwood 
  • Guest Cast

  • Claire Holt as Rebekah Mikaelson
  • Marguerite MacIntyre as Elizabeth Forbes
  • Olga Fonda as Nadia Petrova
  • Rick Worthy as Rudy Hopkins
  • Hayley Kiyoko as Megan King
  • Kendrick Sampson as Jesse
  • Jason MacDonald as Grayson Gilbert
  • Sabrina Mayfield as Dianne Freeman
  • Hans Obma as Gregor
  • Co-Starring

  • Jesse Haus as Student #1
  • Max Calder as Student #2
  • Trivia

  • Antagonists: Silas, Nadia, Enzo (unseen) and Gregor.
  • This is the first episode of the first chapter of Season Five, The Doppelgängers Chapter.
  • First appearances of Nadia, Gregor, Jesse, Dianne and Megan.
  • With its 7 words (25 letters), this episode has the third longest title after We'll Always Have Bourbon Street and We All Go A Little Mad Sometimes.
  • Elena and Caroline meet Jesse in this episode.
  • Whitmore College is revealed to be a few hours away from Mystic Falls.
  • Rebekah and Matt were sending postcards from their European trip.
  • Bonnie tells Jeremy that she doesn't want to ruin Elena's happiness by revealing that she died.
  • Whitmore House is seen for the first time in this episode, it'll reappear in The Cell.
  • Caroline and Elena can't enter Whitmore House because they haven't been invited in by the owner (Aaron Whitmore).
  • Katherine and Silas meet for the very first time. Although Katherine awoke him in Down the Rabbit Hole by letting him feed on Jeremy, Silas wasn't conscious.
  • This episode featured the first same-sex kiss (Rebekah and Nadia).
  • Matt has his first threesome in the series in this episode with Rebekah and Nadia, while this is Rebekah's second threesome in the series. Rebekah's first was with Damon and Sage in Break On Through.
  • Silas reveals to Damon that Stefan is "suffering" just as he had for 2,000 years.
  • Although Silas is immortal, he lacks some abilities that vampires have, such as super-speed and increased physical strength.
  • Silas proves he has no fangs as he claims he is immortal, but not a vampire.
  • Silas dislikes vampires. He deems them to be "disgusting perversions" of a true immortal like him.
  • Damon offers Katherine his blood to turn her into a vampire again, but she declines his offer. She fears that if she dies with vampire blood in her system, she may end up actually dying as a human and not coming back a vampire due to the cure's side effects.
  • Elena learns that the recently killed Megan King new her father, based on the photo on her phone.
  • The End of Summer party took place in this episode.
  • Silas uses his pychic powers to compel everyone in the Town Square to search for Katherine for him.
  • Body Count

  • Megan - drained of blood, killed by Enzo (unseen).
  • Rudy Hopkins - throat slit, killed by Silas.
  • Continuity

  • This is the first season premiere to feature Rick Worthy as Rudy Hopkins.
  • Liz was last seen in The Walking Dead.
  • This is the first season premiere to not feature Tyler, at least physically.
  • There is a time jump of three months from the end of Season 4 occurring in June.
  • This is the first time since Katerina and Klaus that Katherine Pierce is seen as a human, she was last seen as a human only in the 1490 and 1492 flashbacks in those episodes.
  • This is the first time Katherine meets Silas since she freed him on the Island.
  • Grayson and Miranda Gilbert were last seen in The Departed and were last mentioned in Graduation.
  • Jenna Sommers was last seen in The Departed and was last mentioned in Stand By Me.
  • Jeremy says that he burned the Gilbert House to fake his death. In Stand By Me, it was Elena who burned down the house to use as a cover story for Jeremy's death.
  • Whitmore College as a whole was last seen in The Five, though it was last visited in Because the Night when Stefan, Caroline and Klaus broke into Shane's office.
  • In Fifty Shades of Grayson, it's revealed that Enzo is the vampire that killed Megan.
  • Behind the Scenes

  • As of this season, Marguerite MacIntyre (Elizabeth Forbes) becomes the only non main character who is still alive to appear in every season of the series.
  • This episode had about 2.59 million viewers in USA. 
  • Cultural References

  • I Know What You Did Last Summer is the name of a 1997 horror movie starring Jennifer Love Hewitt, Sarah Michelle Gellar, Ryan Phillippe and Freddie Prinze Jr. The screenplay was written by Kevin Williamson. The screenplay was also based on the 1973 novel by the same name by Lois Duncan.
  • Supernatural (Season 4, Episode 9) also has a title with the same name.

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