Stranger Things Season 2: 13 Big Questions We Need Answering
9. What Was Brenner Really Up To - And Is He Still Alive?
Dr Martin Brenner is one of the more enigmatic characters in Stranger Things, and the closest we have to a true human villain, yet there's a lot about him we don't really know.
Firstly, there's the question of whether he is actually Eleven's real father or not, since she calls him Papa - and if not, who is? And even ignoring that, there's the question of what he and the Department of Energy are really up to in that lab: Soviet secrets? Finding another dimension? Creating or discovering a weapon?
Matthew Modine is expected to be back in some form in Season 2, so we should get some answers, though how many will probably depend on whether his character is actually alive or not, something not made clear by the end of Season 1.