With his signature sharp jawline, brooding intensity, and unmatched knack for playing complex, eccentric, and tortured characters, Theroux has built one of the most intriguing and unpredictable careers in modern Hollywood.

From surreal art-house masterpieces and gut-wrenching prestige television to scene-stealing blockbuster comedies, Theroux has consistently resisted being boxed in. Beyond his acting work, he’s also a accomplished screenwriter behind hits like Tropic Thunder and Iron Man 2.

To celebrate his 55th milestone, here is a retrospective look at the seven roles that best showcase Justin Theroux’s impressive range and screen charisma.

1. Kevin Garvey – The Leftovers (2014–2017)

When Damon Lindelof’s HBO drama launched, Theroux stepped into the role of Kevin Garvey, a tormented police chief dealing with the unexplained disappearance of 2% of the world’s population. What followed across three breathtaking seasons was a dramatic tour de force. Theroux brought visceral grief, raw vulnerability, and sheer physical commitment to a man constantly teetering on the edge of sanity. His performance grounded the show’s existential weight, earning critical acclaim and cementing the series as a peak-TV masterpiece.

2. Adam Kesher – Mulholland Drive (2001)

Theroux’s breakout performance came in David Lynch’s surreal neo-noir masterpiece. Playing Adam Kesher, a Hollywood film director whose life and movie project are systematically hijacked by shadowy mob figures, Theroux brought perfect comedic frustration and bewildered charm to the absurdity surrounding him. His standout scene—confronting the enigmatic “Billy Knotts” with a golf club—remains one of the most iconic moments in Lynch’s filmography.

3. Rory – Beetlejuice Beetlejuice (2024)

Joining Tim Burton’s highly anticipated sequel, Theroux delivered pure comedic gold as Rory, the pretentiously sensitive, manipulative manager and fiance to Lydia Deetz (Winona Ryder). Dressed in faux-boho suits and delivering performatively emotional platitudes, Theroux fully embraced the film’s campy gothic energy, serving as a hilariously slimy foil to both Lydia and the titular Ghost with the Most.

4. Dr. James K. Mantleray – Maniac (2018)

In Cary Joji Fukunaga’s trippy Netflix miniseries, Theroux leaned heavily into eccentric character work as Dr. James K. Mantleray, the toupee-wearing, emotionally stunted scientist overseeing a radical pharmaceutical trial. Acting alongside Emma Stone and Jonah Hill, Theroux brought manic energy, bizarre physical comedy, and surprising sweetness to a profoundly broken genius.

5. G. Gordon Liddy – White House Plumbers (2023)

Taking on real-life political history, Theroux starred as Watergate operative G. Gordon Liddy opposite Woody Harrelson’s E. Howard Hunt in HBO’s satirical miniseries. Theroux offered an unhinged, deadpan performance as the fanatical, gun-toting mastermind whose absolute hubris helped bring down a presidency. His terrifying yet hilarious dedication to the bit highlighted his knack for historical satire.

6. Allie Fox – The Mosquito Coast (2021–2023)

Stepping into a role previously originated on screen by Harrison Ford, Theroux led Apple TV+’s thriller series as Allie Fox, a brilliant, radically anti-consumerist inventor who uproots his family and flees to Latin America while pursued by the U.S. government. Theroux captured the dangerous charm and obsessive conviction of a man whose idealism threatens to destroy everything he holds dear.

7. Timothy Bryce – American Psycho (2000)

Long before he was taking on heavy dramatic leads, Theroux delivered an unforgettable supporting turn in Mary Harron’s cult satire. Playing Timothy Bryce, the slick, pompous Wall Street colleague of Patrick Bateman (Christian Bale), Theroux epitomized 1980s corporate vanity. His reaction during the famous, high-stakes “business card comparison scene” remains a staple of internet pop culture.

A Multi-Hyphenate Talent Still at His Peak

At 55, Justin Theroux continues to seek out roles that push boundaries, balance dark comedy with drama, and surprise audiences. Whether he’s anchoring prestige cable series or stealing scenes in major summer blockbusters, his screen presence remains as sharp and vital as ever. Happy Birthday, Justin!