The LittleBigPlanet Movie 2: The SackFamily

Plot
The sack is back! Bunkum has a new crisis on their tail, so Sackboy (James Marsden) and Newton (Will Ferrell) team up to stop an evil genius named Dr. Sackenstein (Brian Hull) from starting a kiddie revolution to erase parents. They get help from Sackboy's youngest daughter, Samantha (Whoopi Goldberg) and her older sister, Sackdaughter (Juliet Donenfeld) to win!

Main
James Marsden as Sackboy - The main protagonist of the film, the father of Sackdaughter and Samantha, and the husband of Sackgirl

Eva Longoria as Sackgirl - Sackboy's wife and the mother of Sackdaughter and Samantha

Will Ferrell as Newton - The secondary protagonist of the film and Sackboy's rival

Whoopi Goldberg as Samantha - The tritagonist of the film, mission worker from Bunkum, and the youngest daughter of Sackboy and Sackgirl

Juliet Donenfeld as Sackdaughter - The fourth protagonist of the film and the oldest daughter of Sackboy and Sackgirl

Keegan-Michael Key as Toggle/Little Toggle - The shapeshifting tubby that appears as a supporting character

Brian Hull as Dr. Sackenstein - The main antagonist of the film and the founder of Sackdaughter's school

Danny DeVito as Mr. Cottonbottom (Sackboy Sr.) - A supporting character of the film and Sackboy's father

Sally Field as Mrs. Cottonbottom (Helen) - A supporting character of the film and Sackboy's mother

Additional
Genndy Tartakovsky as Oddsock - The new mayor of Craftworld and one of Sackboy's friends

Anya Taylor-Joy as Sockette - The wife of Oddsock

Jacob Tremblay as Nathan & Baby Ninja Leader - The school bully, the leader of the baby ninjas

David Spade as Swoop - The bird that's now a cop

Chloë Grace Moretz as Meghan - Nathan's friend

James Ryan as Story Bear (Connie) - Samantha's bear

David P. Smith as Moviegoer - Cameo

Molly K. Gray as Creepy Girl - A baby that's creepy and likes ponies

Dee Bradley Baker as Precious - The Cottonbottom's new pony

Nova Reed as Little Bo Peep Baby - A weird kawaii baby

Dave Needham as Glue Baby - The baby that likes glue

Chris Pratt as Young Sackboy Voice-Over - Cameo

Production
The LittleBigPlanet Movie: The SackFamily is a 2029 animated comedy sequel set to release by Columbia Pictures and Sony Pictures Animation on September 14, 2029.