Jon Hamm arrives on the red carpet of the Black & Red Ball celebrating the upcoming final season of the show "Mad Men" in Los Angeles on March 25, 2015. File Photo by David Silpa/UPI | License Photo

Cast members Jon Hamm, the voice of Herb Overkill and Allison Janney, the voice of Madge Nelson in the animated motion picture comedy "Minions" attend the premiere of the film at the Shrine Auditorium in Los Angeles on June 28, 2015. File Photo by Jim Ruymen/UPI | License Photo

Actor Jon Hamm attends the annual Hollywood Foreign Press Association (HFPA) Grants Banquet at the Beverly Wilshire Hotel in Beverly Hills, Calif. File Photo by Jim Ruymen/UPI | License Photo

Actor Jon Hamm, winner of Outstanding Lead Actor in a Drama Series for 'Mad Men,' holds his Emmy at the 67th Primetime Emmy Awards at the Microsoft Theater in Los Angeles on Sept. 20, 2015. Hamm will guest star as a 'Mad Men' inspired character in Bikini Bottom as "Don Grouper" on 'SpongeBob SquarePants.' Photo by Jim Ruymen/UPI | License Photo

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.


A sketch of the upcoming character shows a smiling, dapper Grouper dressed appropriately in a Mad Men-styled suit and tie combination complete with a cup of coffee in his hand. Sources say the character will be charismatic, sharp-witted and irresistible.

News of the Emmy Award-winning actor moving straight into the guest role comes after he picked up his statuette for his AMC hit show during last week's award's ceremony in Los Angeles. But the cameo isn't the first time Hamm has voiced an animated character. The 44-year-old actor also voiced Herb Overkill in Minions released over the summer.

In an early interview with Collider, the actor explained voicing cartoon characters gives one "total freedom."

"You're not constrained by what you look like or what your hair looks like that day, or what haircut you're stuck with from whatever thing you just finished," he told the outlet. "It's really fun and it's completely creative."