Peter MacKenzie
Known for
Peter MacKenzie is a working actor with a career measured in decades rather than seasons. The count stands at 86 titles, and the range inside it is wide. 'Project X' is where the largest audience met him. Elsewhere on the filmography sits 'American Dad!'. The career opened quietly, the way most long ones do.
Peter MacKenzie
27 Movies
59 Series
Peter MacKenzie is a working actor with a career measured in decades rather than seasons. The count stands at 86 titles, and the range inside it is wide. 'Project X' is where the largest audience met him. Elsewhere on the filmography sits 'American Dad!'. The career opened quietly, the way most long ones do.
Movies
Plays Hotel Desk Manager
One Hour Photo
2002
Plays Dr. Allen
It's Complicated
2009
Plays Dad
Project X
2012
Plays Happy Chandler
42
2013
Plays Robert Kenny
Trumbo
2015
Plays JBN Reporter
Nick of Time
1995
Plays Gene Handsaker
Rules Don't Apply
2016
Plays Andy
Speechless
1994
Plays Tim Manning
Spaceman
2016
Plays Dr. Kent
Room 6
2006
Plays Psych Doc 1
Fool's Paradise
2023
Plays MP
Off Limits
1988
Plays Alex Summers
Theodore Rex
1995
Plays James Hastings
Earth to Echo
2014
Plays Mr. Sneed
Tom and Huck
1995
Plays Immunosuppression Doctor
Lorenzo's Oil
1992
Plays Doc Windgate
Major League: Back to the Minors
1998
Plays Bob Mead
The In Crowd
2000
Plays Head of State Thompson
Atlas Shrugged: Part III
2014
Plays 1st Young Man
Torch Song Trilogy
1988
Plays Mr. Leemann
Degree of Certainty
2026
Plays Anesthesiologist
Good Time Max
2008
Plays Bill Talbot
A Simple Wedding
2018
Plays David Dellinger
The Chicago 8
2011
Plays Dickson Willoughby
Firehouse
1987
TV Shows
Plays Leslie Stevens
black-ish
2014
Plays Reverend Peter Mayfair
Hart of Dixie
2011
Plays Dr. Grossbard / Senator #1 (voice)
American Dad!
2005
Plays Donald Colburn
Don't Trust the B---- in Apartment 23
2012
Plays Peter Warren
Grace and Frankie
2015
Plays Neville Johnson
Harry's Law
2011
Plays Mr. Firestein
The Drew Carey Show
1995
Plays Dr. Eisling
CSI: Crime Scene Investigation
2000
Plays Dr. Schultz
Gilmore Girls
2000
Plays Doctor
It's Always Sunny in Philadelphia
2005
Plays Marty (voice)
Nine Perfect Strangers
2021
Plays Dr. Stephen Goodman
Eli Stone
2008
Plays Mr. Phelps
JONAS L.A.
2009
Plays Don
Twins
2005
Plays Sean Boyle
Aquarius
2015
Plays Mr. Bertoglio
DAHMER - Monster: The Jeffrey Dahmer Story
2022
Plays Jim
Friends with Better Lives
2014
Plays Neil
Better With You
2010
Plays Kendall Stevens
Ally McBeal
1997
Plays Russell Tanninger
CSI: Miami
2002
Plays Howlett
Judging Amy
1999
Plays Harvey James
Cold Case
2003
Plays Frank Ripton
Crossing Jordan
2001
Plays Terry
Malcolm in the Middle
2000
Plays Dr. Loftusi
George Lopez
2002
Plays Matthew
Dharma & Greg
1997
Plays Mr. Wells
Profiler
1996
Plays Jack Fisher
Criminal Minds
2005
Plays D.A. Brenner
The Practice
1997
Plays Asher
Strong Medicine
2000
Latest Trailers
Watch Trailer
Fool's Paradise
Full Filmography
Degree of Certainty
Mr. Leemann
2026
Film
Fool's Paradise
Psych Doc 1
2023
Film
DAHMER - Monster: The Jeffrey Dahmer Story
Mr. Bertoglio · 1 episode
2022–
TV
Nine Perfect Strangers
Marty (voice) · 1 episode
2021–
TV
Them
Mr. Stoat · 1 episode
2021–
TV
Your Honor
Calvin Bloom · 1 episode
2020–
TV
A Simple Wedding
Bill Talbot
2018
Film
Rules Don't Apply
Gene Handsaker
2016
Film
Spaceman
Tim Manning
2016
Film
Photos
Frequently Asked Questions
What are the most famous roles of Peter MacKenzie?
Peter MacKenzie is best known for roles in Project X, Good Morning, Vietnam, 42.
How many movies has Peter MacKenzie been in?
Over a 39-year career (since 1987), Peter MacKenzie has appeared in 27 movies and 59 TV shows.
What was Peter MacKenzie's first movie?
The career of Peter MacKenzie began with Firehouse (1987).
What is Peter MacKenzie's most recent movie or series?
Peter MacKenzie's most recent release is Degree of Certainty, which premiered on August 8, 2026.
What TV shows has Peter MacKenzie appeared in?
On television, Peter MacKenzie has appeared in Grey's Anatomy, How I Met Your Mother, Malcolm in the Middle, The Mentalist.
Peter MacKenzie
Peter MacKenzie (born January 19, 1961) is an American actor. In 1979, Peter took acting lessons in New York. He worked at a talent agency before deciding to work as an actor full time in 1984. His first major role was on Herman's Head. He is a character actor. He also played "Mr. Firestein" in the season 3 episode of The Drew Carey Show titled "The Sex Drug", as Mimi Bobeck's counsel in her sex harassment case against Nigel Wick, and co-starred in the 1987 film Firehouse. One of his minor roles was Mr. Sneed in Disney's Tom and Huck. He plays anti-war activist David Dellinger in the 2012 film The Chicago 8.