'Stranger Things' cast comes full circle with Jimmy Fallon for series finale

The Tonight Show is about to turn Upside Down!

The Stranger Things ensemble is set to make multiple appearances on Jimmy Fallon’s popular late-night show in the weeks ahead of the series’ grand finale on December 31.

The guest lineup reads like a full Hawkins reunion. Winona Ryder, Finn Wolfhard, Caleb McLaughlin, Noah Schnapp, Gaten Matarazzo, Sadie Sink, Joe Keery, Natalia Dyer, Charlie Heaton, Maya Hawke, and creators Matt and Ross Duffer are all set to drop by.

Leading the charge is Millie Bobby Brown, who will co-host the December 7th episode alongside Fallon.

The show will also debut a one-minute cast-led recap of the entire series, while Keery — who plays the beloved Steve Harrington — will make a special Thanksgiving appearance on November 27.

It’s a full-circle moment for the ensemble, who first visited Fallon nearly a decade ago after season one’s breakout debut, giving us some iconic segments like Millie rapping Nicki Minaj’s iconic Monster verse or Barb coming back to rip into Eleven and the gang for leaving her to die.

Matarazzo kicked things off early with an October 22 visit, where he discussed the emotional final season and played a game that revealed he’d rescue Eddie Munson from the Upside Down.

Netflix is rolling out the grand finale in three parts, with Volume 1 premiering November 26, Volume 2 dropping on December 25, and Volume 3 arriving December 31.

This season puts the gang back on the hunt for Vecna as the government locks down Hawkins. “Complicating their mission, the government has placed the town under military quarantine… The final battle is looming,” reads the official synopsis.