Every Stranger Things character: who appears in which season, what happens to them and the actors behind them. Next to the episode guide and trailers.

Millie Bobby Brown
A girl with telekinetic and psychic abilities who escaped Hawkins National Laboratory.

Finn Wolfhard
Leader of the party, Dungeon Master, and Eleven's closest friend.

Noah Schnapp
The boy whose disappearance starts the story and who remains deeply linked to the Upside Down.

Gaten Matarazzo
Inventive, loyal member of the party known for science smarts and radio skills.

Caleb McLaughlin
Pragmatic and brave party member, later connected to Max Mayfield.

Sadie Sink
Skateboarder who joins the party in Season 2 and becomes central to later battles.

Winona Ryder
Will and Jonathan's mother, relentless in protecting her family from the Upside Down.

David Harbour
Hawkins police chief who becomes Eleven's adoptive father figure.

Natalia Dyer
Mike's older sister, aspiring journalist who repeatedly investigates supernatural crimes.

Charlie Heaton
Will's older brother, photographer, and frequent ally in the fight against the Upside Down.

Joe Keery
Former Hawkins High popular kid turned protector of the younger party.

Maya Hawke
Steve's coworker and friend introduced in Season 3, sharp-witted and brave.

Joseph Quinn
Hellfire Club leader introduced in Season 4.

Priah Ferguson
Lucas's younger sister who becomes an unexpected ally.

Dacre Montgomery
Max's stepbrother, introduced in Season 2.

Sean Astin
Radioshack manager and Joyce's partner in Season 2.

Brett Gelman
Conspiracy theorist and translator who aids Joyce and Hopper.

Paul Reiser
Department of Energy official who oversees aftermath of the lab incidents.

Matthew Modine
Scientist who oversaw experiments on Eleven at Hawkins Lab.

Jamie Campbell Bower
Also known as Vecna / One — antagonist whose origins are explored in Season 4.

Eduardo Franco
Jonathan's California friend and pizza delivery driver introduced in Season 4.