保罗·立博斯坦，Paul Bevan Lieberstein (born February 22, 1967) is an American screenwriter, actor and television producer. A Primetime Emmy Award winner, he is most widely known as a writer, producer, and as supporting cast member Toby Flenderson on the U.S. version of the sitcom The Office. He has been the series' showrunner since its 5th season. On March 22, 2012, it was announced that Lieberstein would step down from his showrunner role (the 8th season having already wrapped production) to focus on a planned spin-off series featuring Rainn Wilson as Dwight Schrute, which was tentatively called "The Farm" and Lieberstein was set to be the showrunner.However, in October 2012, it was announced that NBC was not accepting the spin-off series.