When the skateboarding tomboy rolled into Hawkins in Season 2, she inadvertently brought with her a little tween angst (owing to pals Lucas Sinclair and Dustin Henderson’s crushes on her) and a lotta bullying (courtesy of stepbrother Billy Hargrove).

But overall, Sadie Sink’s plucky heroine fit in with our young protagonists so well that she could have been the piece of the puzzle that we’d never realized had been missing.

https://tvline.com/lists/best-tv-characters-late-cast-additions-seinfeld-buffy-the-office/best-tv-characters-late-cast-additions-max-stranger-things/