Alimi Ballard television credits include "Dark Angel," "American Dreams," "Arsenio," and guest spots on "CSI: Crime Scene Investigation" and "Nash Bridges," for CBS, "NYPD Blue," "Boomtown," "Philly," "She Spies," "The Division," "For the People" and the movie "The Little Richard Story." His first television role was in the daytime drama "Loving." His feature film credits include "Men of Honor" and "Deep Impact." Ballard plays the role of David Sinclair in the CBS series "Numb3rs." David Sinclair is a promising FBI agent assigned to Don Eppes in the pilot episode by the Assistant Director. He has knowledge of defusing explosive devices due to his first posting overseas in Tel Aviv, Israel. He lives in Venice, California, and grew up in the Bronx. His sister, Linda, is divorced, but went back to her ex-husband, which upset David. Since Season 2, David is usually partnered with Colby Granger.