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Best known for: Being "too gay to function" (but it's only okay when Janis says that). It should also be noted he makes an excellent Santa Claus, and is the originator of "Four for you Glen Coco! You go Glen Coco!"
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Best known for: Being Regina George's best friend up until eighth grade when Regina started spreading rumors that Janis was a lesbian. She was also the original choreographer for the "Jingle Bell Rock" performance, and her legacy would live on through numerous Winter Talent Shows.
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Best known as: Regina George's man candy, who looks sexy with his hair pushed back. On October 3rd, he asked what day it was. Two weeks later, he observed that it was raining.
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These days, Bennett still looks sexy with his hair pushed back, and has had recurring guest-roles on shows like Veronica Mars and All My Children.
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Best known for: Being very upset that her classmates can't just get along like they used to in middle school and wishes she could bake a cake made out rainbows and smiles and we'd all eat and be happy. She doesn't even go here, but just has a lot of feelings.
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Morrison actually looks quite lovely when she's not bawling her eyes out over high school drama, and was also in the 2014 film Big Eyes.
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Best known as: A member of the varsity jock clique who went to a party at Regina's house with Gretchen Weiners, but then went to the mall with Taylor Wedell. He also asked Cady Heron if her muffin is buttered, and ended up being told to shave his back.
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DeSanto has also had some notable voice roles in The Magic School Bus, the Beyblade series and Totally Spies.
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Best known for: That one time Regina punched her in the face (and it was awesome). She also saw Cady Heron wearing army pants and flip-flops, so she bought army pants and flip-flops.
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She's still working as an actress and recently appeared in Spotlight – and hopefully still wears her army pants and flip-flops.
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Best known as: Kevin G, Bad-Ass M.C. He may be a mathlete, so nerd is inferred, but forget what you heard, he's like James Bond the third.
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Best known for: Being impressed that Regina has two Fendi purses and a silver Lexus, as well as for wearing a skirt that was her mom's in the '80s – it's vintage and so adorable, but in reality, the "ugliest f-ing skirt" that Regina has ever seen. She also gets her hair soaked by a sprinkler and it's the worst thing to ever happen to her.
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Her Instagram bio says #UnfriendlyBlackHottie, so she's clearly still as obsessed with the movie as we are.
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Best known for: Secretly hooking up with Regina while she was dating Aaron – and then being her rebound after they broke up. He's the Spring Fling King and also a Kalteen Bar truther.
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Mean Girls was only the beginning for Klattenhoff, who had roles on Homeland and Mercy, and currently stars as FBI Agent Donald Ressler in The Blacklist.
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Best known for: Saying that Regina George is flawless, and later, being awarded a small chunk of the Spring Fling Queen crown (her hairdo must have taken hours and she looked really pretty). At lunch she sits with "girls who eat their feelings."
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She later reunited with Rachel McAdams when both were in the 2009 film The Time Traveler's Wife, in which she played a nurse.
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Best known for: Making out with a hot dog, but it was only one time! She's also heard that Regina does car commercials – in Japan.
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Amber D'Alessio is all grown up and definitely wouldn't be sitting at the "burnouts" table in the cafeteria anymore. Chantrey was last in 2013 film Mama.