Robert Clark Gregg (born April 2, 1962) is an American actor, screenwriter and director, best known for his role as Phil Coulson in the films Iron Man (2008), Iron Man 2 (2010), Thor (2011), and Marvel's The Avengers (2012), and in the television series Marvel's Agents of S.H.I.E.L.D., which airs on the ABC network. He also voices the character on the animated television series Ultimate Spider-Man. Gregg has also co-starred as Christine Campbell's ex-husband Richard in the CBS sitcom The New Adventures of Old Christine, which debuted in March 2006 and concluded in May 2010. He also played FBI Special Agent Mike Casper on the NBC series The West Wing and Cam, the on-and-off boyfriend of Jack (and client of Grace) on the NBC series Will & Grace.
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