Early Roles: Justin Theroux started his acting career with roles in Off-Broadway plays and TV shows.

American Psycho (2000): He is known for his role in "American Psycho," where he played a character in a film about a serial killer.

Mulholland Drive (2001): Theroux starred in "Mulholland Drive," a film by David Lynch where he played an unlikable movie director.

Tropic Thunder (2008): He co-wrote "Tropic Thunder," a comedy about a troubled film production.

Iron Man 2 (2010): Theroux co-wrote "Iron Man 2," the second film in the popular superhero series.

The Leftovers (2014-2017): He is best known for his lead role in HBO’s "The Leftovers," playing Kevin Garvey.

The Girl on the Train (2016): Theroux played a major role in "The Girl on the Train," where he was the ex-husband of Emily Blunt’s character.

Star Wars: The Last Jedi (2017): He appeared in "Star Wars: The Last Jedi," part of the famous Star Wars series.

The Mosquito Coast (2021-2023): Theroux starred in "The Mosquito Coast," a TV show based on a novel by his uncle.

White House Plumbers (2023): He played G. Gordon Liddy in HBO’s "White House Plumbers," a comedy series about the Watergate scandal.