Isiah Whitlock Jr. is best known from his roles as corrupt Senator Clay Davis from HBO"s The Wire, Ronald Wilkes from the movie Cedar Rapids with Ed Helms and John C. Reilly, and Spike Lee's films 25th Hour, and She Hate Me. He was also in episodes of the Chappelle Show and Law & Order. Most recently he did two episodes of Louie and just finished a film that stars Robin Williams called The Angriest Man in Brooklyn.