This article contains spoilers for XO, Kitty season 2.To All the Boys Ive Loved Before spinoff XO, Kitty has done an impeccable job so far of continuing the heartfelt rom-com legacy of the film series while giving Kitty (Anna Cathcart) plenty of room to grow as her own character outside of Lara Jeans (Lana Condor) love story. But at the same time, the show doesnt just throw Kitty out into the deep end without a few familiar faces making an appearance every now and then to remind us that she has a support system no matter where in the world she is.Season 2 had some of the biggest cameos so far, with everyones favorite rom-com heartthrob Noah Centineo returning as Peter Kavinsky as well as Janel Parrish as Kittys oldest sister Margot Song-Covey. Heres everything you need to know about when these important characters in Kittys life make an appearance this season and what role they play in her story.When Does Peter Kavinsky Appear in XO, Kitty?The return of Peter Kavinsky was not on my 2025 bingo card, but boy was this such an exciting surprise this season. Even though Netflix may have revealed this cameo ahead of season 2s release, we still werent quite sure how big of a role Peter was going to play this season.Peter shows up in episode 6 of season 2, just when Kitty seems to need him the most. His college lacrosse team has come to Korea to play, and he luckily has enough free time to visit with Kitty and give her some much-needed advice. He also gives her a stack of letters that Lara Jean found back home between their mother Eve and her cousin Simon. Its an important clue that leads Kitty back down the path of reconciliation between her grandmother and great-aunt.According to Noah Centineo, Peters return this season was all thanks to some serendipitous timing. He was already in Seoul filming season 2 of The Recruit when he got a call from XO, Kitty producer Matt Kaplan to see if he would be interested in coming back as Peter for a quick cameo. To which his response was absolutely. Though he also said that coming back to this role five years later was scary, to be completely honest. He continues, You reopen something that I did five years ago. It was very, very special, and you want to do it justice. You dont want to let anyone down.And he definitely did not let us down. Not only do we learn some important information about Kittys family thanks to Peters appearance, we also learn that he and Lara Jean are still going strong as a couple all these years later. And if that isnt a great reminder that these two are the epitome of couple goals, I dont know what is.When Does Kittys Sister Margot Appear in XO, Kitty?In the To All the Boys world, Kitty and Lara Jeans older sister Margot has been living abroad for the last several years, going to school and eventually working in Scotland. We dont see her much in the movies aside from a few brief visits and FaceTime calls with the family, so her appearance this season, a season all about family and reconnection, is really important.Margot appears in episode 8, the season 2 finale, visiting Seoul and helping Kitty reunite their extended family. Kitty has been trying all season to connect with her great-aunt and cousin without much success. After Peter gives her the letters between Simon and Eve, she learns that she and the rest of the family, including her grandmother, were supposed to visit Korea and reconcile their familys past disagreements when she was a child, but that the trip never happened because of her moms death. With the help of Margot, the two sisters are able to help their grandmother reconnect with her sister after all this time. Its a really touching moment that reminds us that this series may be a rom-com about finding true love, but that love and connection from family is also an important part of our lives.All eight episodes of XO, Kitty season 2 are available to stream on Netflix now.