Parks and Rec actor to take over voicing The Simpsons' Jimbo Jones (exclusive)

Jimbo Jones has found his new voice.

Following the retirement of voice actor Pamela Hayden, The Simpsons' sixth-grade bully will now be played by comedian Mo Collins, Entertainment Weekly can exclusively reveal. Collins will make her debut as the character on this week's episode, "P.S. I Hate You," which airs on Sunday, April 13.

Collins' breakthrough came in 1998 when she joined the cast of MadTV, where she appeared in more than 150 episodes across six seasons. The actress portrayed characters like Doreen (the mother of Stuart) and Lorraine Swanson, and also performed impressions of celebrities like Courteney Cox, Hillary Clinton, Madonna, and Paris Hilton on the show.

Collins is perhaps best known for playing the irreverent Pawnee newscaster Joan Callamezzo on Parks and Recreation, recurring on 20 episodes across six seasons of the mockumentary. She also recurred and later became a series regular on Fear the Walking Dead as Sarah Rabinowitz, the sister of Daryl Mitchel's Wendell.

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The actress has also appeared on shows like Arrested Development, Curb Your Enthusiasm, Modern Family, Night Court, and Grey’s Anatomy. And prior to her Simpsons debut, Collins already had a number of voice acting experience, including shows like King of the Hill, F Is for Family, Family Guy, Invader Zim, and American Dad.

Hayden, who also provided the voice for Milhouse and various other characters, played Jimbo from season 2 to season 35. She announced her departure from The Simpsons in November. “The time has come for me to hang up my microphone, but how do I say goodbye to The Simpsons?......not easily," the actress said in a statement at the time. "It's been an honor and a joy to have worked on such a funny, witty, and groundbreaking show, and to give voice to Milhouse (and Jimbo Jones, Rod Flanders, Janey, Malibu Stacy, and many others)."

A new voice performer for Milhouse will be announced later this season.

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The Simpsons is in the midst of its 36th season. It was recently renewed for an additional four more seasons on Fox, which will bring it to season 40 in the 2028–2029 season.

The official logline for "P.S. I Hate You" reads "Marge’s 'nice-lady' reputation is on the line when an unknown blackmailer threatens to expose the angry woman she is inside." The episode premieres Sunday, April 13 at 8 p.m. ET/PT, on Fox.