Kylie Jenner Has People Saying "Who's Casey?" After Posting Her Favorite Christmas Card

    "Everyone is wondering who Casey is and what did they do to her."

    Every year, the Kardashians post a Christmas card*.

    Kim Kardashian riding a scooter/motorbike

    You may have seen this denim one?

    The KarJenners as young children with Kris Jenner and Caitlyn Jenner, all wearing denim shirts and jeans

    Or this motorcycle one?

    The KarJenners as young children with Kris Jenner and Caitlyn Jenner (both on motorcycles), all wearing motorcycle jackets and dark denim

    Kylie posted the message on the card, and it obviously says who it's from.

    "Life is not measured by how many breaths we take but by the moments that take our breath away" and "Merry Christmas, With Love, the Jenners and the Kardashians Bruce, Kris, Kourtney, Casey, Kimberly, Khloé, Robert, Kendall & Kylie"

    There's one name there that isn't instantly recognizable...

    Arrow pointing to "Casey"

    Casey.

    "Casey" even more close up

    The comments are full of people saying the same thing.

    "So are we all here asking the same question? Who tf is Casey?"

    Who in the world is this Casey person?!

    "Who the f is Casey" with laugh-cry emoji

    "Is Casey in the room with us?" this person asked.

    Screenshot of the comment

    "Did Casey take the pic," another person chimed in.

    Screenshot of the comment

    "Everyone wondering who Casey is and what did they do to her."

    Screenshot of the comment

    Well, let me tell you: Casey is Caitlyn Jenner's daughter.

    Arrow pointing to a smiling woman standing next to Caitlyn and three of Caitlyn's other smiling children

    You can find her in this picture, right here:

    Arrow pointing to Casey in the family denim photo

    And in this one, right here:

    Arrow pointing to Casey in the family motorcycle photo

    Basically, I'm here to tell you there are more Kardashian/Jenners than you think.

    Caitlyn with four of her adult children, including Casey

    They're everywhere.

    An older woman rubbing her temples in front of a laptop