Didn’t Love: Jason

Clearly, we were supposed to hate this witch hunt-leading jock douchebag. But—unlike season two and three’s Billy, a baddie who actually evolved a bit—Stranger Things never found the time to make Jason an interesting villain; he was introduced as an asshole in volume one and only served to monkey-wrench the anti-Vecna plan in volume two. And he was one-note until the end.