Stranger Things Season 4's Confirmed Returning Villains (& Who's New)

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Many major villains are coming back for Stranger Things season 4 — here's everything we know about the new and returning villains in the Netflix series' latest season, as well as information on the new Big Bad. Since the show debuted in mid-2016, Stranger Things has boasted an array of antagonists ranging from redeemable human characters, like reformed bully Steve, to inhuman monsters, like the dimension-hopping Demogorgon. Stranger Things season 4 features some new villains too, that have to be seen to be believed.

As the scope ofStranger Things changed from seasons 1—3, the series also made room for more villains, both human and supernatural. By Stranger Things season 2, the gang had to contend with the shady scientist of Hawkins Lab, the unhinged bully Billy, the Mind Flayer, and the Demogorgon. By season 3, Stranger Things had introduced Cary Elwes’ corrupt Hawkins mayor, secret Soviet scientists and their unstoppable assassin, a body-snatching Spider Monster, and the misogynistic staff of the Hawkins Post.

Related: Stranger Things Season 4 Already Wasted Its Biggest Twist

There’s no denying that Stranger Things has had plenty of memorable villains from seasons 1–3, but some of them are well and truly dead and unlikely to be seen again onscreen. However, for every villain who is definitively dead, a few more (like Stranger Things season 1's villain Dr. Brenner) make a comeback in season 4. Here's a full breakdown of the characters most likely to return to Stranger Things in season 4.

Stranger Things season 1’s big bad, Dr. Brenner, was the amoral scientist responsible for Eleven’s telekinetic powers. A creepy father figure to the show’s heroine, Dr. Brenner experimented on Eleven in Hawkins Lab, and either created or