Justin Paul Theroux (/θəˈroʊ/; born August 10, 1971) is an American actor and filmmaker. He gained recognition for his work with director David Lynch in the mystery film Mulholland Drive (2001) and the horror film Inland Empire (2006). He also appeared in films such as Romy and Michele's High School Reunion (1997), American Psycho (2000), Charlie's Angels: Full Throttle (2003), Strangers with Candy (2005), Miami Vice (2006), Wanderlust (2012), The Girl on the Train (2016), The Spy Who Dumped Me (2018), On the Basis of Sex (2018), Bumblebee (2018), Lady and the Tramp (2019), and Beetlejuice Beetlejuice (2024).
Theroux was a screenwriter for films such as the action comedy Tropic Thunder (2008), the superhero film Iron Man 2 (2010), and the musical comedy drama Rock of Ages (2012). He made his directorial debut with the romantic comedy film Dedication (2007).
Theroux starred as Kevin Garvey in the HBO mystery drama series The Leftovers (2014–2017), for which he received widespread praise and was nominated for the Critics' Choice Television Award for Best Actor in a Drama Series. He also starred as Dr. James Mantleray in the Netflix comedy-drama miniseries Maniac (2018). From 2021 to 2023, he portrayed Allie Fox in the Apple TV+ adaptation of The Mosquito Coast, based on the novel by his uncle Paul Theroux. In 2023, he also starred in the HBO satirical political miniseries White House Plumbers.
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No Taste Like Home with Antoni Porowski
Self · (1 episode)
2025

Beetlejuice Beetlejuice
Rory
2024

White House Plumbers
G. Gordon Liddy · (5 episodes)
2023

Mostra, Venise
Self - "Tapis Rouge" Guest · (1 episode)
2022

Violet
The Voice
2021

False Positive
Adrian Martin
2021

The Mosquito Coast
Allie Fox · (17 episodes)
2021

Lady and the Tramp
Tramp (voice)
2019

Joker
Ethan Chase (uncredited)
2019

Lights Out with David Spade
Self - Interviewee · (1 episode)
2019

Camp! The Movie
Self
2019

On the Basis of Sex
Mel Wulf
2018

Bumblebee
Dropkick (voice)
2018

Maniac
Dr. James K. Mantleray · (10 episodes)
2018

The Spy Who Dumped Me
Drew
2018

Mute
Duck Teddington
2018

Star Wars: The Last Jedi
Master Codebreaker
2017

The Lego Ninjago Movie
Garmadon (voice)
2017

The Girl on the Train
Tom Watson
2016

The Master: A LEGO Ninjago Short
Narrator (voice)
2016

Zoolander 2
Evil DJ
2016

The Late Show with Stephen Colbert
Self · (1 episode)
2015

The Late Show with Stephen Colbert
(1 episode)
2015

Close Up with The Hollywood Reporter
Self · (1 episode)
2015

The Leftovers
Kevin Garvey · (28 episodes)
2014

The Tonight Show Starring Jimmy Fallon
Self · (1 episode)
2014

Rick and Morty
Miles Knightly (voice) · (1 episode)
2013

Wanderlust
Seth
2012

Your Highness
Leezar
2011

Megamind
Megaminds's Father (voice)
2010

Parks and Recreation
Justin · (5 episodes)
2009

Tropic Thunder: Rain of Madness
Jan Jürgen
2008

Tropic Thunder
UH-1 Huey Gunner (uncredited)
2008

John Adams
John Hancock · (2 episodes)
2008

Broken English
Nick Gable
2007

Lynch 2
Self
2007

More Things That Happened
Devon Burke
2007

The Ten
Jesus H. Christ
2007

Inland Empire
Devon Berk / Billy Side
2006

Return to Rajapur
2006

Miami Vice
Det. Larry Zito
2006

Strangers with Candy
Carlo Honklin
2006

The Legend of Lucy Keyes
Guy Cooley
2006

The Baxter
Bradley Lake
2005

The Making of ‘Mulholland Drive’
Self
2004

Happy End
Jack
2003

Duplex
Coop
2003

Charlie's Angels: Full Throttle
Seamus O'Grady
2003

Alias
Simon Walker · (2 episodes)
2001

Zoolander
Evil DJ
2001

Mulholland Drive
Adam
2001

Six Feet Under
Joe · (9 episodes)
2001

The Sleepy Time Gal
Rebecca's Boyfriend
2001

The District
Nick Pierce · (27 episodes)
2000

American Psycho
Timothy Bryce
2000

The Broken Hearts Club: A Romantic Comedy
Marshall
2000

Sirens
Officer David Bontempo
1999

Mulholland Dr.
Adam
1999

Frogs for Snakes
Flav Santana
1998

Sex and the City
Jared · (1 episode)
1998

Sex and the City
Vaughn Wysel · (1 episode)
1998

Dead Broke
James
1998

Below Utopia
Daniel Beckett
1997

Ally McBeal
Raymond Brown · (1 episode)
1997

Romy and Michele's High School Reunion
Cowboy
1997
Dream House
Mark Brooks
1997

I Shot Andy Warhol
Mark
1996

Billion Dollar Spy
Van Spencer

Spin City
Pete · (1 episode)
1996

Central Park West
(1 episode)
1995

New York Undercover
Frankie Stone · (1 episode)
1994

Entertainment Tonight
Self · (2 episodes)
1981

Saturday Night Live
Self - Cameo (uncredited) · (1 episode)
1975