Martin Starr (born July 30, 1982) is an American television and film actor. He is perhaps best known for his portrayal of Bill Haverchuck on the short-lived NBC comedy-drama Freaks and Geeks (1999-2000).
Starr was born Martin James Pflieger Schienle in Santa Monica, California, the son of actress Jean St. James (née Pflieger) and Jim Schienle, a guidance counselor at West Zephyrhills Elementary.
After Freaks and Geeks, Starr had a number of guest appearances and one-time roles on shows such as Normal, Ohio, Ed, Mysterious Ways, Providence and King of the Hill. He had a small recurring role during the third season of Roswell as the character Monk. In 2002, Starr appeared in the films Stealing Harvard and Cheats. He also reunited with both Freaks and Geeks producer Judd Apatow and Freaks and Geeks co-star Seth Rogen when he made a guest appearance on Apatow's sitcom Undeclared in the episode "The Perfect Date".
In 2005, he appeared in the miniseries Revelations, the CBS sitcom How I Met Your Mother and the Apatow-produced Kicking & Screaming. Starr's most recent roles include Apatow's 2007 films Knocked Up and Superbad and the upcoming films Good Dick and Adventureland.