Peter Killian Gallagher was born on August 19, 1955, in New York City. He is an actor from America. Since 1980, he has acted in many Hollywood movies. People know him best for playing Sandy Cohen in the TV show The O.C. from 2003 to 2007. He also had roles in other TV shows like Law & Order: Special Victims Unit and Californication. He’s been in movies like Mr. Deeds and Grace & Frankie on Netflix.
When he was young, his mom was a scientist, and his dad worked in advertising. He’s the youngest of three kids. He grew up in Armonk, New York, and went to Tufts University. There, he was part of the theater and sang in a group.
He started his career on Broadway and in movies. Some of his famous roles are in movies like sex, lies, and videotape, American Beauty, and The Player. On TV, he’s most famous for his role in The O.C.
Apart from acting, he released an album in 2005 and got awards from his university for his work in entertainment.
He’s been married to Paula Harwood, and they have two children named James and Kathryn. His daughter Kathryn is also an actress and singer.