Philip Edward Hartman (né Hartmann; September 24, 1948 – May 28, 1998) was a Canadian-born American comedian, actor, screenwriter, and graphic designer. Hartman was born in Brantford, Ontario, Canada, and his family moved to the United States when he was ten years old. After graduating from California State University, Northridge with a degree in graphic arts, he designed album covers for bands including Poco and America. In 1975, Hartman joined the comedy group the Groundlings, where he helped Paul Reubens develop his character Pee-wee Herman. Hartman co-wrote the film Pee-wee's Big Adventur…