S37E03The Simpsons season 37 episode 3: Treehouse of Horror XXXVI
Aired 19 October 202524 minRated TV-PG
Where to watch The Simpsons Season 37 in Australia
The Simpsons season 37 is streaming in Australia on Disney+ (subscription, listed for the whole show).
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Availability checked 16 November 2026.
What happens in “Treehouse of Horror XXXVI”
Springfield is threatened by a mysterious killer monster emerging from the sewers, Krusty welcomes a demonic guest to his Halloween special, and the action moves a thousand years into the future in a post-apocalyptic, plastic version of the city.
Episode summary: TMDB.
Before you watch
- It is episode 3 of 15 of season 37, so watch episodes 1 to 2 first.
- It runs about 24 minutes.
- Directed by Matthew Faughnan, written by Michael Price, Dan Greaney and Broti Gupta.
- TMDB users rate it 7.7 out of 10 (14 votes).
The Simpsons trailer
The official trailer for the series (no preview of this episode has been published).
Play video: The Simpsons trailer
Cast and crew of this episode
- Director
- Matthew Faughnan
- Writers
- Michael PriceDan GreaneyBroti Gupta
- Guest stars
- Matt Groening as Matt Groening (voice)Grey DeLisle as Martin Prince (voice)Ike Barinholtz as Wayne the Grip (voice)Kelly MacLeod as Milhouse Van Houten (voice)Viola Davis as Narrator (voice)Michael Keaton as Hal Julian (voice)Idris Elba as Devil (voice)Kimberly Brooks as Janey Powell (voice)
Credits: TMDB.
More from The Simpsons Season 37
Previous · S37E02Keep Chalm and Gary On5 October 2025Every episode of Season 37The Simpsons episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.