James O'Heir is an American actor and comedian best known for portraying Jerry Gergich on the NBC sitcom Parks and Recreation. O'Heir first became active in Chicago theater and improv during the late 1980s and early 1990s as part of the comedic theater troupe "White Noise", and appeared in such plays as The Book of Blanche, Stumpy's Gang and Ad-Nauseam with the group. O'Heir has appeared in several films and made guest appearances on such shows as Friends, Boston Legal, Malcolm in the Middle, Star Trek: Voyager, 3rd Rock from the Sun, ER, and Parenthood. In 2000, he starred in the Comedy Central series Strip Mall as Harvey Krudup, the husband of protagonist Tammi Tyler, who was played by Julie Brown. In 2009, O'Heir became a regular supporting cast member of the NBC comedy series Parks and Recreation, playing Jerry Gergich.