Peter S. Jacobson (born 24 March, 1965) is an American film and television actor. He has been in the film As Good as It Gets and played a recurring role on Law & Order as Randy Dworkin, a jovial crusading defense attorney attached to various causes. In 2005, Jacobson played "Jimmy" in the Academy Award-nominated film, Good Night, and Good Luck. He has appeared on Scrubs, CSI: Miami, The Lost Room, The Starter Wife, Transformers and The Midnight Meat Train. In October 2007, he was confirmed as a regular on the television show House. He provides the voice of Waterkotte in Prep & Landing.