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'Family Guy' spinoff 'Stewie' sets voice cast

FAMILY GUY: MeQg pursues an unlikely friendship with an NFL great; Stewie and Brian host a dinner party at a?home furnishing?store in the all-new “Bringing Up Brady” episode of Family Guy airing Sunday, March 1 (8:00-8:31 PM ET/PT) on FOX. FAMILY GUY © 2026 by 20th Television
FAMILY GUY: MeQg pursues an unlikely friendship with an NFL great; Stewie and Brian host a dinner party at a?home furnishing?store in the all-new “Bringing Up Brady” episode of Family Guy airing Sunday, March 1 (8:00-8:31 PM ET/PT) on FOX. FAMILY GUY © 2026 by 20th Television

It's the second spinoff of 'Family Guy' to hit the network.

I say… Family Guy is getting another new spinoff — this time, centering on the football-headed, talking baby Stewie Griffin.

Fox has given a two-season order to Stewie, a spinoff of the long-lived adult animated comedy series, and it’ll present the character in an all-new light.

Here’s what we know about Stewie so far.

When will Stewie premiere?

The first season of the new series will be part of the 2027-2028 TV season. The two seasons align with the second part of the four-season orders Seth MacFarlane‘s other series, Family Guy and American Dad!, received before from Fox.

What will Stewie be about?

The series will center on the same megalomaniacal toddler we’ve come to know and loathe love, Stewart “Stewie” Griffin, but with a twist: It’ll follow the character during his time in preschool.

“After getting the boot from his old preschool, Stewie is forced to enroll in a new one that’s not exactly top-of-the-line. It’s attended by a handful of kids he doesn’t know, an elderly class turtle with a half-cocked theory on just about everything, and a teacher who probably shouldn’t be allowed anywhere near kids. Stewie’s miserable, the other kids are miserable, even the turtle is miserable…until Stewie begins rolling out his trusty array of devices to take them anywhere in space and time, turning every boring day at school into an insane and unforgettable adventure,” per the description.

Who will star in Stewie?

MacFarlane will reprise his role as the pint-sized, matricidal tyke, as well as another key role. Here’s the added cast and new characters:

  • Kenan Thompson as Royal, “one of Stewie’s new friends who’s got a ‘hell no’ attitude about the hazards of Stewie’s adventures.”
  • Vanessa Bayer as Morgan, “Stewie’s teacher, who should probably spend more time watching the kids and less time partying.”
  • Mike Henry as BJ, “Stewie’s gossipy new classmate and son of Family Guy‘s Bruce.”
  • Jessica Lowe as Caroline, “a wannabe influencer and Stewie’s formidable classroom nemesis.”
  • Melissa O’Neil as Wanda, “Stewie’s intellectual soulmate and object of affection.”
  • Aaron Lee as Skunk, “The 100-year-old turtle who’s got a half-cocked theory about literally everything.”
  • MacFarlane as Bean, “Stewie’s man-of-very-few-words classmate who was dropped on his head one too many times.”

What else is there to know about Stewie?

Stewie‘s first season will run for less than 15 episodes, per Deadline. The spinoff is not expected to change the presence of Stewie on Family Guy proper.

In a statement on the news, MacFarlane said, “I’d like to thank Fox for this incredible opportunity, and I’m excited to start pretending I’m collaborating closely with them on the show.”

Stewie is the second spinoff of Family Guy to be ordered by the network. The first, The Cleveland Show, centered on the character Cleveland Brown, and ran from 2009 to 2013. Family Guy is currently airing Season 24.

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