The Duffer Brothers had to tell Stranger Things actor not to be "too emotional" while filming the final scenes: "We're like, 'You're not supposed to be upset!'"

Stranger Things 4.

We've already been told by Stranger Things showrunners Matt and Ross Duffer to brace ourselves for a tear-jerking fifth season, as Will, Eleven and co. enter into a life-threatening face-off against big bad Vecna. This is Stranger Things, mind you, so we can expect some fun and levity amid all that world-saving tension.

The actors had a pretty challenging time filming any lighter scenes towards the end of the chapter's near 12-month shoot, though, the Duffer Brothers have recalled. Why? Well, they knew it was the last time they'd all be together running around Hawkins and avoiding demogorgons...