Ellen DeGeneres, Brooks's regal tang co-star from the 2003 blockbuster "Finding Nemo," is also on board for the follow-up.
The original film's director, Andrew Stanton, will direct the sequel, as well, the entertainment news website said.
There is no word on what the story will be about or when the movie is expected to hit theaters.
Brooks was recently seen in "This is 40" and "Drive."
Celebrity Breakups and divorces of 2014 [PHOTOS]