Christopher B. Duncan is an American actor. He is best known for portraying Braxton P. Hartnabrig on The Jamie Foxx Show and he is also known for his performance as President Barack Obama on the The Tonight Show with Jay Leno. He will portray Obama in the 2010 film My Name is Khan.
Duncan received his B.F.A. from the University of Colorado, Boulder. In addition to Braxton P. Hartnabrig, he also portrayed Spyro in Original Gangstas and starred in two Craig T. Nelson television shows: The District and Coach. In addition, he portrayed Clarence Wiedman on the show Veronica Mars and Mr. Matthews in Aliens in America.
Starting in 2009, Duncan starred in several television commercials for K-Mart. He is often confused with or mistaken for Fonzworth Bentley.