You might be wondering, “Why not kill him earlier? He was a walking villain!” Well, the Duffer Brothers are sadists who like long arcs. Billy was introduced in Season 2 as a one-dimensional bully to replace the Demogorgon. But then they realized Dacre Montgomery had the charisma of a young Tom Cruise on steroids, so they gave him a whole season of backstory.
Plus, killing him in Season 3 allowed them to tie up his plot with a thematic bow. His death symbolizes how trauma can either consume you or let you make a noble choice. It’s deep, man. Also, it gave us that iconic scene where he fights the monster while shirtless. Because of course Billy Hargrove dies with his abs out.
The Aftermath: A Ghost That Haunts
Billy’s death has major ripple effects. His sister Max falls into depression, spends all of Season 4 in her bedroom, and nearly gets her brains sucked out by Vecna. The show literally uses Billy’s ghost to haunt her, which is both cruel and a fantastic excuse for flashbacks.
Does Billy die in Stranger Things?
And let’s not forget the fan theories. Some people swear Billy is secretly alive and will return as a vampire in Season 5. Others think his ghost is just a hallucination. The truth? He’s dead, Jim. Dead as a Demogorgon after a flamethrower party. But his hair product did survive, which is the real tragedy.