The official teaser trailer for Season 5 previews a final battle with Vecna, whose complex origin story is the focal point of the play "Stranger Things: The First Shadow."

Vecna returns with a terrifying new look in Stranger Things Season 5. Could he be hiding inside Will Byers? A dark theory suggests so.

The trailer doesn't show Vecna's full face, but the Season 5 poster reveals it’s partially hidden in a red cloud. The cloud obscures one of his eyes, hinting at possible physical damage. This detail suggests he may have lost the eye during the Season 4 battle.

Did you know that Stranger Things was originally going to kill off two fan-favorite characters and that a Bridgerton star lost out on a major role?