Who is John Swartzwelder? Reclusive 'Simpsons' Writer Discusses Iconic Episodes On 5/4/21 at 12:03 PM EDT The Simpsons has given a lengthy interview about his career writing for the iconic cartoon. John Swartzwelder, who is described as one of the most revered comedy writers of all time, opened up to The New Yorker in a piece that offers intriguing insights into the mind of the writer who is responsible for more scripts than any other writer in The Simpsons history. Swartzwelder penned 59 scripts in total for The Simpsons and is credited with being integral in shaping the show into the cultural phenomenon it is today.