Peter James Smith guest stars on tonight's episode of Monk, "Mr. Monk and the Really Really Dead Guy." He does not play the really really dead guy. He plays an FBI dude named Agent Keao. You may remember Peter from several seasons as the recurring character "Ed" on The West Wing. There's an interview with him on the Monk Fun Page here. And brief video clip of him here (he's the dude with the gadget thing). You can also catch Peter as a regular on the upcoming NBC half-hour comedy Andy Barker P.I.

EDIT: Scratch that. Peter tells me his character has apparently been excised from Andy Barker, P.I.