Born in Los Angeles, he began his career as a child actor in the 1950s. He gained prominence as a comedian, writer, and actor, becoming a key member of the ensemble cast of "Saturday Night Live" in the 1970s and 1980s. Known for his voice work on "The Simpsons," he provided voices for characters like Mr. Burns, Smithers, and Ned Flanders. He is also recognized for his role in the mockumentary "This Is Spinal Tap" and has been involved in various radio and film projects.