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.

The Simpsons fans were in for difficult news and a big loss to the town of Springfield on Wednesday (November 20). Pamela Hayden, who originated the voice of Bart’s bespectacled best pal Milhouse and many other mainstay characters, announced she is retiring from voice acting and is leaving the show.