Clark Gregg received his bachelor of fine arts degree from NYU where he trained with David Mamet and William H. Macy. With them, he co-founded New York's famed Atlantic Theater Company, serving as one of the company's first artistic directors. Since moving to Los Angeles in the 1990s, Gregg has put together an impressive body of work in film and television. On television, Gregg played the recurring role of FBI liaison Agent Michael Casper on "The West Wing." He has also appeared in "The Shield," "Will & Grace," "Sport's Night," "Sex and the City" and "The Practice." His television film credits include "Tyson," "Live from Baghdad" and the upcoming romantic comedy "The Road to Christmas," opposite his wife, Jennifer Grey.
Gregg portrays the role of Richard Campbell in the Comedy series "The New Adventures of Old Christine."