Pamela Hayden, the voice of Bart’s friend Milhouse, retires from ‘The Simpsons’

Pamela Hayden, who has voiced characters on “The Simpsons” since it began in 1989 and famously played Bart’s nerdy best friend Milhouse Van Houten, announced Wednesday that she was retiring from the show.

Hayden, 70, said on her Facebook page that after 35 years she would stop performing on “The Simpsons” and would “pursue other creative outlets.” Episode seven of season 36, scheduled to air Sunday, will be her final episode.

“One thing that I love about Milhouse is he’s always getting knocked down, but he keeps getting up,” Hayden said in a tribute video posted on “The Simpsons” social media pages. “I love the little guy.”

Credited with voicing dozens of Simpson’s characters, including one of Milhouse’s bullies, Jimbo Jones, Hayden’s most famous character is Milhouse. His blue hair and big eyes are accentuated with large, round glasses. The clumsy, shy 10-year-old is one of the most endearing characters in Springfield, thanks in part to his halting, sheepish voice and his stubborn resilience.

Milhouse, named after former President Richard Milhous Nixon, often finds himself following his best friend, Bart, into trouble as a gullible sidekick. Throughout the show, Milhouse often cites his mother’s concerns for his safety as an excuse to not go on adventures. In one instance, Milhouse relayed that his mother “says solving riddles is an asthma trigger.”

One adventure he does agree to is playing “Fallout Boy” to Bart’s “Radioactive Man.” The band Fallout Boy took its name from the character.

In addition to her role in “The Simpsons” universe — which includes parts in a movie, the television show and video games — Hayden has several credits outside the series. She voiced a character for a 2015 Lego video game and was a main voice in “Lloyd in Space,” a Disney cartoon centered on a child alien that ran for four seasons from 2001-04.

“Pamela gave us tons of laughs with Milhouse, the hapless kid with the biggest nose in Springfield,” Matt Groening, creator of “The Simpsons,” said in a statement. “She made Milhouse hilarious and real, and we will miss her.”

A spokesperson for Fox Television did not immediately respond Wednesday to an email seeking comment.

It was not immediately clear what the future holds for Milhouse or Hayden’s other characters for the rest of its 36th season. Tim Curtis, a representative for Hayden, said in an email that the network would “start exploring recasting soon.”

“The Simpsons” has not yet been renewed for a 37th season, Variety Magazine reported.

Hayden said in an interview Wednesday that she will continue to work on writing and producing and is working on a short film and a musical.

“On the couch with bonbons is not really my style,” Hayden said. “Although the bonbons are.”

In the tribute video to Hayden that was posted on “The Simpsons” social media accounts, Hayden said that Milhouse provides a great life lesson in perseverance and optimism.

“Everything’s coming up Milhouse!” the boy shouts with glee in one scene while water floods his room.