Hayden, who voiced Bart Simpson’s nerdy sidekick Milhouse Van Houten, Jimbo Jones and others, said she is leaving the show to pursue other opportunities.

After 35 years of voicing Bart’s unlucky but indefatigable best friend, Pamela Hayden is retiring. She still has high hopes for his future.

Hayden, 70, who voiced Milhouse, Jimbo Jones, Rod Flanders, Janey and Malibu Stacy, will sign off from “The Simpsons” on Nov. 24 in a “Treehouse of Horror” episode.