Peter Killian Gallagher is an American actor. Since 1980, he has played roles in numerous Hollywood films. He is best known for starring as Sandy Cohen in the television drama series The O.C. (2003) from 2003 to 2007, recurring roles such as Deputy Chief William Dodds on Law & Order: Special Victims Unit (1999), Stacey Koons on the Showtime comedy-drama Californication (2007), and Nick on the Netflix series Grace and Frankie (2015). He also played CIA Director of Clandestine Services (DCS) Arthur Campbell on Covert Affairs (2010).

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Peter Gallagher and Jacqueline Obradors in Palm Springs (2020)

Peter Gallagher in Peter Gallagher/J.R. Ramirez/Taye Diggs/Rumer Willis (2020)

Daryl Hannah, Peter Gallagher, and Valérie Quennessen in Summer Lovers (1982)

Jane Fonda and Peter Gallagher in Grace and Frankie (2015)

Paul Sorvino and Peter Gallagher in Perfume (2001)

Peter Gallagher in The O.C.: Obsess Completely (2004)

Kevin Spacey, Thora Birch, and Mena Suvari in American Beauty (1999)

Mischa Barton, Adam Brody, Ben McKenzie, and Rachel Bilson in The O.C. (2003)

Adam Sandler and John Turturro in Mr. Deeds (2002)

Sandra Bullock and Bill Pullman in While You Were Sleeping (1995)

Peter Gallagher(I)

Peter Gallagher(I)

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