Eleven

"What- you're lookin' for this?" he asks as she reveals Sara's blue hair band, wrapped around his wrist. He never takes it off. Back in Hawkins, he remembers thinking maybe he'd give it to Eleven, hopefully make her understand just how important she is to him, but he hadn't had the chance before ending up here.

"Yeah, I still got it," he says. "Couldn't lose this."