What role is Justin Theroux playing in Fallout season 2? The new teaser trailer unveils his character and more

Fallout season 2 is scheduled to premiere on Prime Video on December 17, 2025. The video game-based series is set to raise the bar with more threat, thrill, and trials.

At a prominent gaming event called Gamescom 2025, an official teaser trailer for season 2 was unveiled on August 19. It was dropped on Prime Video's YouTube channel a day later for the global audience.

Bringing the much-anticipated glimpse of the second installment, one of the biggest surprises is the announcement of Justin Theroux as the new cast member. As many viewers may be curious about his character, the teaser trailer depicts that Theroux will feature in Fallout season 2 as Robert House.

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Justin Theroux to take the role of Robert House in Fallout season 2

A still from the teaser trailer (Image via YouTube/@PrimeVideo)

The teaser trailer of Fallout season 2 has teased forthcoming dangers as the Ghoul and Lucy MacLean arrive at Las Vegas. While Lucy asks him why her father would come to this location, the character indicates that this was the place where the downfall of the world started, because of one man.

The trailer, building up to the entry of this man, then lifts the curtain off this mysterious character named Robert House. Justin Theroux is set to play this role in the second season, with the new teaser trailer showcasing a brief look at his character.

In the game 'Fallout: New Vegas', he is the head of RobCo Industries and the one who runs the city. The first season also showed Robert House (previously played by a different actor, Rafi Silver) agree to the nuclear bombing of the city for Vault-Tec's profits.

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What Fallout season 2 teaser trailer showcases about Justin Theroux's Robert House?

A still from the teaser trailer (Image via YouTube/@PrimeVideo)

The clip goes back in Cooper Howard's past, unraveling who Robert House is and how he is involved in the chaos. Amidst the rich and bustling landscapes of Las Vegas from the past, the teaser trailer features Justin Theroux sitting in front of several computer screens as Howard approaches him. In the video, he makes a sharp remark to Howard and says:

"Like yourself, I am the very best... at what I do. And what I do... is I know everything."

Elaborating on the impending threats of war and violence, he highlights how Howard is the kind of guy who would do anything to save his family. Hinting at the rising tension between the two, Theroux's character mentions to Howard:

"I think you are actually quite a violent man. You just don't want to kill me... yet."

While this brief glimpse is only a sneak peek at his character, it is awaited to witness what Theroux's character brings ahead in the series.

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Fallout season 2 gives the first glimpse of the franchise's scariest post-apocalyptic predator

A still from the teaser trailer (Image via YouTube/@PrimeVideo)

As the characters seem to have too many fights and hurdles to cross in the new teaser-trailer of Fallout season 2, the video also gives the viewers a look at one of the most dangerous elements of the season.

As Lucy and the Ghoul are hiding in a threatening situation, they are approached by the fierce Deathclaw. The trailer offers a brief look at the character. The two protagonists are seen rushing away from the predator as the video comes to an end.

The predator is known as one of the most daunting ones in the video game. With the inclusion of the character in the upcoming series, there are a lot of action-packed sequences and intense challenges that the viewers can expect to watch ahead in the show.

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Stay tuned for more updates.