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2) Tom Holloway Tom was the Editor-in-Chief of The Hawkins Post, and he was turned into a member of the Mind Flayer's hive when Heather brought Billy over for dinner. He and Bruce tried to hunt down Nancy & Jonathan in the Hawkins Memorial Hospital, but Jonathan killed Tom by stabbing him in the neck with scissors. After Tom and Bruce die, their bodies melt and turn into a new creature. Netflix

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3) Heather Holloway Sweet, kind Heather just wanted to flirt with Billy all summer, but she was instead kidnapped by him and turned into a member of the Flayed. She later helped Billy take her parents to the Mind Flayer. Heather was killed by the Mind Flayer when he melted her, her mother, and other members of the Flayed in order to create a new, stronger, monster. Netflix

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4) Doris Driscoll Doris just wanted to know why those darn rats were eating her fertilizer, but instead she was turned into a member of the Flayed and began frantically eating fertilizer . Doris' call to The Hawkins Post about the rats also helped Nancy figure out that something was amiss in Hawkins. Doris was last seen being melted in order to create the larger, stronger Mind Flayer. Netflix

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5) Alexei Alexei was a man of simple needs: just a cherry Slurpee and a Whopper from Burger King. He was also a Russian scientist working on the machine below the Starcourt Mall that would create gates to the Upside Down. Hopper and Joyce basically kidnapped Alexei in order to get answers about what was going on around Hawkins, and with the help of Murray , who speaks Russian, they were able to figure out a way to close the gate. Unfortunately, Alexei was killed at the Hawkins Fun Fair. Murray had left him unattended, and Grigori, one of the Russian soldiers, fatally shot Alexei. Netflix

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6) Grigori Unlike a lot of the characters on the list, we were happy to see the Terminator-wannabe get what was coming to him. Grigori was a major nuisance for the entire season, killing Alexei and another unnamed Russian scientist. He also assaulted Hopper when he saw him and Joyce investigating the Hawkins National Laboratory. Hopper later got his revenge when he threw Grigori against the Russian machine underneath Starcourt, which ripped him apart. Netflix

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7) Billy Hargrove On the very first episode of season three, Billy got possessed by the Mind Flayer. He then spent the entire season recruiting (aka kidnapping) people and bringing them to the Mind Flayer to be Flayed. During the final episode of season three, Billy has a chance to help the Mind Flayer kill Eleven, but after she pleads with him and reminds him of his kind mother, he snaps out of the trance, and decides to save Eleven-sacrificing himself to the Mind Flayer. Netflix

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8) The Mind Flayer The Mind Flayer is gone for good this time (we hope). Joyce was able to turn the key in order to destroy the machine that opened a gate between the real world and the Upside Down. Once the gate was closed the Mind Flayer collapsed and lost all of its power. Netflix

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9) Hopper By far the most shocking death of the season, Hopper was trapped near the Russian's machine when Joyce turned the key to destroy it, and he was killed by the explosion...or so it seemed. A post-credits scene showed Russian soldiers patrolling a prison and they referred to one prisoner as "the American," leading some fans (and David Harbour himself ) to believe that the American that they're referring to is Hopper. Netflix