Aside from Eleven, the other biggest transformation we see in season four is in Lucas (Caleb McLaughlin), who's joined the Hawkins Tigers basketball team and, by association, earned entry to the cool-kids club at school. "With that, we wanted to make sure that he had a very distinct transformation," Hindsgual says. "There's an awkwardness in that, too, when you're trying so much. It's such a big flat top he has going on."