BURBANK, Calif., Sept. 25 (UPI) -- Jon Hamm will guest star in Nickelodeon's popular animated series SpongeBob SquarePants as a Mad Men-inspired fish named Don Grouper.
According to reports, Hamm will guest star as a smooth-talking advertising executive under the sea in an upcoming episode of SpongeBob SquarePants to help launch Mr. Krabs' frozen Krabby Patties. The episode will reportedly air sometime in 2016.