Warning! SPOILERS for Young Sheldon season 5, episode 16.
Missy's (Raegan Revord) The Big Bang Theory life was already tragic, and Young Sheldon just made her story even worse. Despite the CBS sitcom being named after Sheldon (Iain Armitage), it has also put a considerable focus on the rest of his family — that includes his twin sister, who fans previously met in the late 2000s on The Big Bang Theory season 1.
Sheldon usually talked about having a sister on The Big Bang Theory, but viewers, as well as his friends, didn't expect her to be very different from her brother. While Missy Cooper isn't as intellectually-gifted in The Big Bang Theory as her twin, she excels in other things. She's friendlier and more adept with her human side — something that Young Sheldon is leaning on. As Sheldon tries to work to advance science and technology, Missy is going through normal teenage experiences. Unfortunately, however, despite this, she ends up the least successful among the Cooper kids, at least in the traditional sense.
Related: Young Sheldon Shows How Penny & Leonard's TBBT Story Should've Ended
Unlike Sheldon who wins the Nobel Prize in Physics and Georgie (Montana Jordan) who runs his own successful business, Missy works as a hostess at a restaurant as per The Big Bang Theory. It's unclear why she ends up with that job since Young Sheldon season 5 reveals that she actually has a knack for entrepreneurship. After getting $100 from Meemaw (Annie Potts), Missy ends up starting a cotton candy business at school, and with some guidance from Young Sheldon's Georgie, she starts earning a profit. Unfortunately, she halted her operations after suffering an ant infestation. However, this establishes that she could've followed her
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