Something seriously strange is happening to Brian and Stewie in Family Guy. The pair have spent 24 seasons causing trouble in Quahog, but their latest adventure takes that chaos somewhere much harder to escape: Hell.
The newly released trailer for the 2026 Halloween special, “Happy Hell-o-ween,” gives fans a glimpse of the bizarre situation waiting for the talking dog and brilliant baby. What begins as a reckoning for years of bad behaviour quickly turns into something neither of them could have expected.
Family Guy’s Brian and Stewie face Hell in “Happy Hell-o-ween”
The upcoming Family Guy Halloween special takes Brian and Stewie far beyond their usual Quahog adventures.
After 24 seasons of questionable behaviour, the two characters find themselves in Hell and are effectively forced to answer for everything they have done over the years. But, naturally, things do not stay under control for very long.
Rather than simply accepting their fate, Brian and Stewie manage to annoy the Devil himself.
And that is where the story takes a very Family Guy turn.
The official description reveals that the pair eventually end up taking control of Hell, transforming what should have been a punishment into an entirely new management problem for the underworld.
The special is titled “Happy Hell-o-ween” and will debut on Hulu and Hulu on Disney+ on October 5, 2026.
| Detail | Official information |
| Special | Family Guy: Happy Hell-o-ween |
| Release date | October 5, 2026 |
| Streaming | Hulu and Hulu on Disney+ |
| Main characters | Brian and Stewie |
| Guest voice | Kieran Culkin as the Devil |
| Setting | Hell |
| Central premise | Brian and Stewie eventually take control of Hell |
FX’s next horror anthology is already lining up its own eerie lineup for the season ahead. For more, check out our full guide on American Horror Story: 13 Release Schedule, Cast and 13-Episode Guide for FX and Hulu.
Kieran Culkin is stepping into the role of the Devil
The Halloween special also has a major guest star waiting on the other side.
Kieran Culkin will provide the voice of the Devil, bringing a very recognisable name into the Family Guy universe.
Culkin’s involvement was revealed during the Family Guy panel at San Diego Comic-Con in July. During the panel, executive producer and showrunner Rich Appel announced the Halloween and holiday specials, including Culkin’s role in the Halloween story.
For viewers who know Culkin from Succession, the casting comes with an obvious bit of promotional fun.
Culkin is best known for playing Roman Roy on the HBO series, and Family Guy has leaned into that connection while promoting his appearance.
The official premise jokes that Culkin has already spent plenty of time around devils on Succession. Now, he gets to go one step further and actually voice one.
Unfortunately for his Devil, his new problem is not simply Brian.
It is Brian and Stewie.
The new Family Guy Halloween trailer gives Stewie control of Hell
The first trailer makes one thing particularly clear: Brian and Stewie are not going to spend their time quietly wandering around the underworld.
Once they get on the Devil’s nerves, the situation changes dramatically.
The two somehow find themselves in charge of Hell, giving Stewie an entire supernatural realm in which to test his ideas.
That is almost the perfect setup for his personality.
Stewie has spent much of Family Guy trying to impose his will on the world around him. Giving him control over Hell takes that familiar character trait and places it on a much bigger stage.
The trailer even offers a glimpse of the kind of changes Stewie wants to make.
“All torture is voluntary now.”
That line captures the strange comedy at the centre of the special without giving away the entire story.
Instead of simply being trapped in Hell, Brian and Stewie now have the power to change how the place operates. And with Stewie involved, apparently even the rules of the underworld are negotiable.
Family Guy isn’t the only long-running animated comedy shaking things up — South Park just gave its entire opening a dramatic overhaul. For more, read our story on South Park Season 29 Officially Becomes “South America” as Iconic Opening Gets Major New Theme.
“Happy Hell-o-ween” continues Family Guy’s Hulu holiday specials
The 2026 Halloween episode is also part of a larger holiday tradition that Family Guy has been building on Hulu.
The series began releasing Hulu-exclusive holiday specials in 2024, followed by another Halloween special in 2025.
That makes “Happy Hell-o-ween” the latest entry in a developing run of seasonal stories separate from the show’s regular broadcast schedule.
The format gives Family Guy room to build larger standalone stories around specific holidays while the main series continues its normal production.
For viewers in the US, the Halloween special will stream on Hulu. International availability is handled through Disney+ in most markets.
And Halloween is not the only holiday chaos coming from the Griffins in 2026.
The Peter Clause brings Peter into another Christmas disaster
After Brian and Stewie get their turn in the underworld, the focus will shift back to Peter Griffin for the Christmas special “The Peter Clause.”
The second holiday special is scheduled for the November 2026 period, although a precise release date had not been firmly established in the latest available official material.
This time, Peter and the guys compete to become Quahog’s official Santa.
Peter loses.
For most people, that might be the end of the story.
For Peter Griffin, apparently not.
Rather than quietly accepting the result, he turns his disappointment into another major disaster. The official premise describes Peter choosing the less mature option, setting up another holiday story around his inability to simply accept defeat.
That gives Family Guy two major holiday stories before the regular series moves into its next chapter.
Family Guy Season 25 is already confirmed for 2027
The holiday specials are not replacing the main series.
There is still plenty more Family Guy ahead.
In April 2025, FOX announced a four-season renewal covering Seasons 24 through 27, extending the animated comedy through the 2028-29 broadcast cycle.
That means Season 25 is already part of the show’s confirmed future.
The next regular season is expected to return to FOX in 2027, with Hulu also carrying the series for streaming. However, a specific Season 25 premiere date has not yet been announced.
The arrangement also means the holiday specials can fill the gap between regular seasons without suggesting that the original series is coming to an end.
And the franchise is not stopping there.
Stewie is getting his own Family Guy spinoff
One of the biggest projects connected to the Family Guy universe is a new series simply titled “Stewie.”
FOX has officially announced the animated spinoff, which is scheduled for the 2027-28 television season.
As the title suggests, Stewie takes centre stage.
The story begins after Stewie is expelled from his old preschool. He is then forced to attend a less impressive preschool, where he encounters unfamiliar children and a particularly unusual classmate: a 75-year-old class turtle with strange theories about practically everything.
Naturally, Stewie does not simply accept his new circumstances.
Instead, he uses his collection of devices to transform his otherwise miserable school days into adventures involving space and time.
The project keeps the original creative connection to Family Guy. Seth MacFarlane will continue voicing Stewie and will executive produce through Fuzzy Door.
Kirker Butler created the series with MacFarlane and serves as showrunner, while Kara Vallow is also an executive producer.
The spinoff is being produced by 20th Television Animation.
What’s next for Family Guy?
The next major event is much closer than the Stewie spinoff.
On October 5, 2026, Brian and Stewie will enter the world of “Happy Hell-o-ween,” with Kieran Culkin providing the voice of the Devil.
The premise starts with the pair answering for 24 seasons of bad behaviour, but the situation quickly escalates after they annoy the Devil and somehow end up running Hell themselves.
Then comes “The Peter Clause” in November, with Peter competing to become Quahog’s official Santa before turning his loss into another holiday disaster.
After that, Family Guy is expected to return with Season 25 in 2027, while the franchise continues toward the already confirmed Season 27.
Then, during the 2027-28 television season, Stewie will get a universe of his own through the new Stewie spinoff.
While the Griffins gear up for chaos in Hell, another hit series is gearing up for its own high-stakes comeback. For more, dive into our breakdown of Lioness Season 4: Zoe Saldaña Return, Renewal Status and What the Season 3 Finale Really Sets Up.
Conclusion
For now, though, all eyes are on “Happy Hell-o-ween.”
Brian and Stewie are heading to Hell, Kieran Culkin is voicing the Devil, and somehow the pair go from being judged for their behaviour to running the entire underworld.
With “The Peter Clause,” Season 25 and the upcoming Stewie spinoff also on the horizon, Family Guy has a remarkably busy few years ahead.
The Halloween special arrives on Hulu and Hulu on Disney+ on October 5, 2026 — and judging by the trailer, Hell is about to get a very unexpected change in management.
Source & Research Disclaimer
This article has been prepared based on thorough research of the sources provided in the original material, including official Hulu, Disney, FOX Entertainment and FOXFLASH information, along with the cited ABC7 and VT.co reporting. It reflects the information available as of September 26, 2026. Future release dates and streaming availability, particularly for projects without finalized schedules, may change.
Sources
- The Walt Disney Company – Hulu Trailers
- FOX Entertainment – 2026-27 Schedule
- FOX Entertainment – Four-Season Family Guy Renewal
- FOXFLASH – Family Guy Releases
- ABC7 – Family Guy: Happy Hell-o-ween
- VT.co – Family Guy Halloween and Holiday Specials
Featured Image Credit: Hulu
Leave a Reply