Thalia Harrington has always been Steve's shy little sister. But now that she's back from boarding school she's going to show everyone who she really is. They won't know what hit em'.
Thalia had been in Paris at an arts school that she got accepted into for writing. She's been in Paris for 3 1/2 years and now she's finally home.
What she doesn't realize is that Hawkins is not the same place she left 3 years ago. - Sabrina Carpenter as Thalia Harrington
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Dacre Montgomery as Billy Hargrove
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Joe Keery as Steve Harrington
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