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Peter Gallagher

Peter Gallagher

Peter Killian Gallagher is an American actor, musician and writer. Since 1980, Gallagher has played roles in numerous Hollywood films. He starred as Sandy Cohen in the television drama series The O.C. from 2003 to 2007. From 2010 to 2014, he appeared in a recurring role on the USA Network drama Covert Affairs, as CIA Clandestine Services Director Arthur Campbell.
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