Family Guy's Happy Hell-o-ween Trailer Sends Brian and Stewie to Hell

Brian and Stewie wind up in Hell in the trailer for Family Guy: Happy Hell-o-ween, a new Halloween special arriving October 5, 2026, on Hulu in the United States. Kieran Culkin guest stars as the Devil. The special’s premise is that the pair annoy him enough to end up running the underworld themselves.

What Does the Trailer Show?

Hulu’s official trailer turns the afterlife into another setting for Brian and Stewie’s arguments. Their new authority creates the joke: the two visitors propose their own rules while the Devil loses control of the place. The footage also shows Peter in the underworld, but trailer editing alone does not establish a larger story arc or any lasting change to the series.

The Halloween episode is a streaming special, separate from the regular run of Family Guy. Culkin’s Devil is a guest role announced for this special; his appearance here does not imply that he is joining the regular cast.

When Can You Watch Happy Hell-o-ween?

October 5 on Hulu is the confirmed US streaming date in Disney-owned ABC7’s coverage. The trailer is also listed on The Walt Disney Company’s official trailer page. Availability through Hulu on Disney+ depends on the viewer’s eligible subscription; international release details should be checked in each market rather than assumed from the US date.

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