Inside Pete Davidson's Relationship With His Sister Casey
Robert King
Published Mar 30, 2026
While he may spend a lot of time in the spotlight with A-list celebrities, when it comes to his life behind the scenes, Pete Davidson shares a quiet, close relationship with his family. In fact, as many of his fans already know, Davidson's longtime roomie was none other than his mother, Amy (via NY Post). The third member of their close family unit is Casey Davidson, the talented comedian's younger sister. Born in 1997, Casey graduated from Marist College in Poughkeepsie in 2019, where she played college basketball (via Distractify).
Despite the fact that the two siblings have a four-year age difference, they couldn't be closer. Casey's Instagram account shows photos of the siblings constantly supporting each other, whether it's Davidson attending his sister's graduation, or Casey watching her brother's comedy performances. The two siblings, along with Davidson's ex, Ariana Grande, even share a tattoo (via Heavy). The Davidson's got the tattoo in honor of their late father, a firefighter who tragically died on 9/11. The tattoo is their father's former badge number, 8418.
Not only is Casey close with her brother, but she has also recently been seen connecting with her brother's girlfriend — at least through social media. When Casey posted a photo of her and her brother sitting court side at a Brooklyn Nets' game, Kim Kardashian responded by liking the post (via E! News).