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Attended Oak Park River Forest High School, Oak Park, Illinois, and was a classmate of Michael Gerber, author of the "Barry Trotter" series. He is a fan of Jackie Chan. He co-wrote The Pacifier with Chan in mind, but it had to be re-worked when it became a Vin Diesel vehicle instead. Lives with his wife Jenny Robertson in Los Angeles [2002]. He loves Bob Dylan. In the episode of The State in which we meet the father of Doug (the recurrent character who says "I'm outta heeeere"), it turns out that discontented Doug's dad is totally cool. When Doug mistakenly says that Bob Dylan died of drugs, Lennon's character replies that Dylan is alive and well, "I produced his last five albums." Lennon-as-Dad quietly offers to "sell my Hog and quit the Hell's Angels" if that would make Doug happy. Later, he distributes beers to the teenagers. Originally met Kerri Kenney, fellow member of The State and Reno 911!, at age 16 in theater camp. Has said that Brazil is his favorite film of all time.