The actor says he put together the linked characters before he ever got the scripts for the final episodes.
Warning: This article contains spoilers fromStranger Thingsseason 4, Volume 2.
“It’s the thing he loves most in the world.

The Mind Flayer as seen terrorizing Hawkins in ‘Stranger Things’ season 2.netflix
It is a spider, so it’s mine.
It belongs to me.”
“But the Mind Flayer was right next to [Will] all the time.

Jamie Campbell Bower stars as Vecna in ‘Stranger Things’ season 4.Netflix
I was like, ‘I’m not mad!’
It was really, really cool.”
Netflix released a behind-the-scenes photo of the actor on set, staring at the jars.
He would often draw pictures of the arachnids and study them.
Though, he never gave his two pets names.
“I just called them my spiders, which is almost more terrifying,” he notes.
It seems as though Henry/One/Vecna will now be returning for the fifth and final season ofStranger Things.
When asked if he had signed on for multiple seasons when he first took the role, Bower laughs.
“You’re so smart.
You’re such a smart man.
I couldn’t possibly say, it’s gonna be my answer,” he responds.
“I couldn’t possibly tell you.
Anything I say is going to be wrong.”
Steve and Robin light him up with molotov cocktails, while Nancy fires a shotgun.
Vecna, now on fire, stumbles out of the attic window and tumbles to the ground below.
But when the kids race outside, his body isn’t there.
Will, upon returning to Hawkins, says he can feel Vecna and knows he’s still alive.
This, Bower says, was hisHalloweenorFriday the 13thmoment.
“It’s the classic, ‘Oh no!
Where’s he gone?’
EW’sUltimate Guide to Stranger Thingsisavailable onlineor wherever magazines are sold.