Mackenzie Alexander Astin (born May 12, 1973) is an American actor.

KNOWN FOR

Grey's Anatomy
2011
NCIS
2012
Bones
2013
The Blacklist
2023
Castle
2015
Shameless
2013
House
2006
Hawaii Five-0
2014
Lost
2005
The Pitt
2025
Homeland
2018
The Outer Limits
2000

FILMOGRAPHY

All
Movies
TV
Acting
100
2026
Landman
as Detective Hayes
2025
The Short Game
as John Avery
2025
The Pitt
as Jereme Spencer
2025
Stick
as Gary Wheeler
2025
Mayor of Kingstown
as Barry Chester
2023
The Blacklist
as Jonathan Pritchard
2023
Love & Death
as Tom O'Connell
2022
Safe Room
as Dominic
2022
Garbage Pail Kids in Mad Mike: Fury Load
as Corroded Carl
2021
Montford: The Chickasaw Rancher
as Lt. Pratt
2021
You
as Gil Brigham
2020
Teenage Bounty Hunters
as Anderson Wesley
2019
The Orville
as Orrin Channing
2019
The Loudest Voice
as John Moody
2018
The Maestro
as Sam Herst
2018
Remember the Sultana
as Captain J. Walter Elliott / Private George Clarkson (voice)
2018
Homeland
as Bill Dunn
2018
How to Get Away with Murder
as Noah Baker
2017
30 Years of Garbage: The Garbage Pail Kids Story
as Self
2017
Te Ata
as Dr. Clyde Fisher
2017
Do You Take This Man
as Jacob
2016
Moments of Clarity
as Pastor Paul
2016
Change of Heart
as Eric
2016
Windsor
as Harry Barnett
2016
Welcome to the Men's Group
as Tom
2016
The Magicians
as Richard
2015
Stag Hunt
2015
Daddy
as Paul
2015
Castle
as Phillip Bartlett
2015
Marvel's Agents of S.H.I.E.L.D.
as Tim Maguire
2015
Scorpion
as Leonard
2015
The Player
2015
Rosewood
as Dr. Max Cahn
2015
Mad Men
as Cliff Baur
2015
The Night Shift
as Mr. Edwards
2014
Scandal
as Noah Baker
2014
Franklin & Bash
as Seth
2014
Murder in the First
as Bob Groff
2014
Hawaii Five-0
as Bradley Richmond
2013
Miracle at Gate 213
as Mike
2013
Lonely Boy
as Bob
2013
Zombeo & Juliécula
as George
2013
Rizzoli & Isles
as Professor Rick Clark
2013
Bones
as Dr. Ivan Jacobs
2013
Touch
as Mr. Kane
2013
Shameless
as Tyler
2013
Private Practice
as Dan Meyer
2013
The Hustle
as Brian
2012
Hell and Mr Fudge
as Edward Fudge
2012
Blackout
as Mark Daniels
2012
Elf-Man
as Eric
2012
Singled Out
as Ethan
2012
90210
as Doctor
2012
NCIS
as Michael Rose
2011
Grey's Anatomy
as Danny Wilson
2010
The Defenders
as Paparazzo
2009
Psych
as Jason Cunningham
2007
The Final Season
as Chip Dolan
2007
My Name Is Earl
as Brandon
2006
Military Intelligence and You!
2006
In from the Night
as Rob Miller
2006
Duncan Removed
as Duncan
2006
House
as Alan Alston
2006
Justice
as Robert Jones
2006
Hallmark Hall of Fame
as Rob Miller
2006
Pepper Dennis
as Ken Alston
2005
Lost
as Tom Brennan
2004
Love's Enduring Promise
as Grant Thomas
2004
Off the Lip
as Brad
2003
Two Days
as Stephen Bell
2003
Welcome 2 Ibiza
as Nick
2003
How to Deal
as Lewis Warsher
2003
Without a Trace
as Charles Beckworth
2002
The Month of August
as Nick
2001
The Zeros
as Joe
2001
Laughter on the 23rd Floor
as Lucas
2001
First Years
as Warren Harrison
2000
Stranger Than Fiction
as Jared
2000
The Outer Limits
as Patrick Tarloff
1999
The Mating Habits of the Earthbound Human
as The Male
1999
Selma, Lord, Selma
as Jonathan Daniels
1998
The Last Days of Disco
as Jimmy
1998
The Long Island Incident
as Kevin McCarthy
1996
Dream for an Insomniac
as David Shrader
1996
In Love and War
as Henry Villard
1996
Widow's Kiss
as Sean Sager
1996
The Evening Star
as Teddy Horton
1995
Harrison Bergeron
as Golf Champion (uncredited)
1994
Iron Will
as Will Stoneman
1994
Wyatt Earp
as Francis O'Rourke
1992
A Child Lost Forever: The Jerry Sherwood Story
as Dennis Sherwood
1992
Brooklyn Bridge
1987
The Garbage Pail Kids Movie
as Dodger
1987
The Facts of Life Down Under
as Andy Moffett
1985
I Dream of Jeannie... Fifteen Years Later
as T.J. Nelson
1985
The NBC All Star Hour: Let's All Be There
1985
The Facts of Life
as Andy Moffett
1985
Hotel
1984
Finder of Lost Loves
as Jeremy Warren
1982
Lois Gibbs and the Love Canal
as Tony Belinski