Kevin Spacey, Thora Birch, Annette Bening, Peter Gallagher, Mena Suvari, Allison Janney, and Chris Cooper at an event for 6th Annual Screen Actors Guild Awards (2000)

Peter Gallagher at an event for Addicted to Love (1997)

Andie MacDowell, Laura San Giacomo, James Spader, and Peter Gallagher in Sex, Lies, and Videotape (1989)

Peter Gallagher, Mary Steenburgen, Lauren Graham, Skylar Astin, Jane Levy, and Alex Newell in Zoey's Extraordinary Playlist (2020)

Peter Gallagher, Mary Steenburgen, Lauren Graham, Skylar Astin, and Jane Levy in Zoey's Extraordinary Playlist (2020)

Peter Gallagher, Mischa Barton, Adam Brody, Melinda Clarke, Kelly Rowan, Ben McKenzie, and Rachel Bilson in The O.C. (2003)

Kevin Spacey, Jack Lemmon, Peter Gallagher, and Bethel Leslie in Long Day's Journey Into Night (1987)

Lili Taylor, Suzy Amis, Peter Gallagher, John C. McGinley, Tom Sizemore, and Jon Tenney in Watch It (1993)

Frances McDormand, Peter Gallagher, and John Lithgow in Johnny Skidmarks (1998)

Peter Gallagher, Mitch Rouse, and Bradley Whitford in The Secret Lives of Men (1998)

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

Jeff Daniels, Brad Davis, Peter Gallagher, Eric Bogosian, and Michael Murphy in The Caine Mutiny Court-Martial (1988)

Peter Gallagher and Jacqueline Obradors in Palm Springs (2020)

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

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)

Peter Gallagher and Maureen McCormick in The Idolmaker (1980)

Laura San Giacomo and Peter Gallagher in Sex, Lies, and Videotape (1989)

Peter Gallagher in Sex, Lies, and Videotape (1989)

Beverly D'Angelo, Steve Guttenberg, Peter Gallagher, and Connie Booth in High Spirits (1988)

Jennifer Tilly and Peter Gallagher in High Spirits (1988)

Peter Gallagher and Mariska Hargitay in Law & Order: Special Victims Unit (1999)

Peter Gallagher, Mariska Hargitay, and Kirk Acevedo in Law & Order: Special Victims Unit (1999)

Peter Gallagher in Law & Order: Special Victims Unit (1999)

Peter Gallagher, Christopher McDonald, and Mariska Hargitay in Law & Order: Special Victims Unit (1999)

Peter Gallagher, Tate Donovan, Mischa Barton, Adam Brody, Melinda Clarke, Alan Dale, Kelly Rowan, Ben McKenzie, and Rachel Bilson in The O.C. (2003)

Jennifer Lopez, James Earl Jones, Mary Stuart Masterson, Peter Gallagher, Erika Alexander, Jordan Charney, Peter Michael Goetz, Page Hannah, Traci Lind, Anne Meara, George Newbern, Geraldine Page, and Pamela Payton-Wright in My Little Girl (1986)

Peter Gallagher, Adam Brody, Melinda Clarke, Kelly Rowan, Autumn Reeser, Ben McKenzie, Rachel Bilson, and Willa Holland in The O.C. (2003)

Peter Gallagher, Tate Donovan, Mischa Barton, Adam Brody, Melinda Clarke, Kelly Rowan, Ben McKenzie, Chris Carmack, and Rachel Bilson in The O.C. (2003)