Justin Theroux keeps the mustache look going as he walks back from the gym solo

Justin Theroux keeps the mustache look going as he walks back from the gym solo after a workout session in New York City

While production is on hiatus from his upcoming HBO movie White House Plumbers, Justin Theroux is keeping his mustache look going.

The Leftovers star, who celebrated his 50th birthday earlier this month, was spotted solo walking back from a workout session in New York City on Monday.

The actor was seen rocking the same stache from White House Plumbers, which has had production suspended following reports of ‘unprofessional behavior’  on set.

Mustache look: While production is on hiatus from his upcoming HBO movie White House Plumbers, Justin Theroux is keeping his mustache look going

Theroux was spotted wearing a black baseball cap with ‘Irak’ in yellow letters, with a white t-shirt featuring ‘Gallery’ in pink lettering.

The actor sported a pair of black aviator sunglasses with a black backpack strapped to his back while carrying an umbrella.

He completed his look with slightly-ripped light grey jeans, black boots, a black smart watch and black bracelets.

Justin's look: Theroux was spotted wearing a black baseball cap with 'Irak' in yellow letters, with a white t-shirt featuring 'Gallery' in pink lettering

Justin’s look: Theroux was spotted wearing a black baseball cap with ‘Irak’ in yellow letters, with a white t-shirt featuring ‘Gallery’ in pink lettering

The workout outing came just weeks after the actor celebrated his 50th birthday with a stylish Instagram snap.

‘As a kid I couldn’t begin to imagine what 50 looks like… and yet of course it looks like this. Both dumb and hilarious at the same time,’ Theroux began.

‘Thank you life. Subverting my expectations for 5 decades. Always funny, always profound…You win again,’ he concluded. 

Birthday: The workout outing came just weeks after the actor celebrated his 50th birthday with a stylish Instagram snap

Birthday: The workout outing came just weeks after the actor celebrated his 50th birthday with a stylish Instagram snap

The actor’s new film, HBO’s White House Plumbers, co-starring Woody Harrelson, had production suspended earlier this month amid reports of ‘unprofessional behavior.’

The network is reportedly investigating an incident that happened on August 4 between director David Mandel and a crew member from the prop department.

The incident lead to the prop department walking off the set of the movie in protest after the altercation, which was recorded on audio. 

New movie: The actor's new film, HBO's White House Plumbers, co-starring Woody Harrelson, had production suspended earlier this month amid reports of 'unprofessional behavior'

New movie: The actor’s new film, HBO’s White House Plumbers, co-starring Woody Harrelson, had production suspended earlier this month amid reports of ‘unprofessional behavior’

The audio recording featured Mandel telling the crew member the F-word and threatening that he’ll never work again.

‘HBO has received reports of alleged unprofessional behavior on the set of White House Plumbers,’ the network said in a statement.

‘We take very seriously our responsibility to ensure a respectful work environment on all our productions, and we are investigating the matter fully,’ the statement added.

Audio: The audio recording featured Mandel telling the crew member the F-word and threatening that he'll never work again

Audio: The audio recording featured Mandel telling the crew member the F-word and threatening that he’ll never work again

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