From Wikipedia, the free encyclopedia. Kenneth Lonergan (born October 16, 1962) is a playwright, screenwriter, and director born in the Bronx, New York City, New York. He began writing in high school at the Walden School (a defunct private school in Manhattan with a strong drama program). His first play, The Rennings Children, was chosen for the Young Playwright's Festival in 1982 while he was still an undergraduate. He would go on to graduate from the NYU Playwriting Program. After he graduat ...