Pamela HaydenThe Simpsons voice actor Pamela Hayden has announced she is retiring from the show after 35 years.Since The Simpsons first began airing in 1989, Pamela has voiced characters like Springfield elementary students Jimbo Jones and Rod Flanders, but it’s her performance as Bart’s best friend Milhouse Van Houten that fans will best know her for.In a video montage posted on The Simpsons’ official Instagram account announcing her departure, Pamela reels off her list of characters, before admitting that Milhouse is her “main guy”.“People are always saying what a nerd he is, but one thing that I love about Millhouse is he’s always getting knocked down, but he keeps getting up,” she enthused.“I love the little guy.”