Anthony Rapp is an American stage and film actor best known for originating the role of Mark Cohen in the Broadway production of “Rent” in 1996 and later for reprising the same role in the film version. He also performed the role of Charlie Brown in the 1999 Broadway revival of “You’re A Good Man, Charlie Brown.”
Rapp first performed on Broadway in 1981, at the age of ten, in “The Little Prince and the Aviator,” a musical based on Antoine de Saint-Exupéry’s novel “The Little Prince.” Rapp also appeared as a teenager in the 1987 movie “Adventures in Babysitting,” which was directed by Chris Columbus. Columbus would later direct Rapp in the film version of “Rent.” Rapp has gone on to appear in several movies and Broadway shows. His notable work includes films “Dazed and Confused,” “A Beautiful Mind,” “Road Trip” and the stage and film versions of “Six Degrees of Separation.”
Rapp is probably best known for playing Mark Cohen in the Off-Broadway and original Broadway and London casts of Jonathan Larson’s musical “Rent.” He reprised that role in the film version of “Rent,” which was released in 2005. Fans of “Rent” closely associate Rapp with that show, in part because his character is semi-autobiographical of the deceased composer and playwright Jonathan Larson.
Source - Wikipedia
http://en.wikipedia.org/wiki/Anthony_Rapp