
Acting
Peter Killian Gallagher (born August 19, 1955) is an American actor. He is best known for his roles in the films Sex, Lies, and Videotape (1989), American Beauty (1999), and Palm Springs (2020).

Law & Order: Special Victims Unit
1999

Grey's Anatomy
2005

Family Guy
1999

The Late Late Show with Craig Ferguson
2005

The View
1997

The O.C.
2003

LIVE with Kelly and Mark
1988

How I Met Your Mother
2005

The Good Wife
2009

Late Night with Conan O'Brien
1993

The Tamron Hall Show
2019

New Girl
2011

The Ellen DeGeneres Show
2003

Californication
2007

Tony Awards
1956

Good Day Live
2001

Homicide: Life on the Street
1993

Grace and Frankie
2015

American Playhouse
1982

The Owl House
2020

Superman: The Animated Series
1996

Stars in the House
2020

The Conners
2018

The Gifted
2017

Covert Affairs
2010

The Megan Mullally Show
2006

Shark
2006

Truth Be Told
2019

On Air with Ryan Seacrest
2004

After
2019

American Beauty
1999

Palm Springs
2020

Fallen Angels
1993

Zoey's Extraordinary Playlist
2020

Everybody's Live with John Mulaney
2025

Man Seeking Woman
2015