Theroux also says creator Damon Lindelof set up payoffs "in such a slow-burn, wonderful way, people who are paying attention will get it"

By Lanford Beard and Julie Jordan
Updated October 05, 2016 06:19 PM
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Credit: HBO

[BRIGHTCOVE “20956947” “” “peoplenow” “auto” ]Justin Theroux promises season 2 of The Leftovers is “going to be amazing … even weirder in a good way.”

“Damon [Lindelof, the creator,] has done a real smart thing – he really has opened the world up and gotten us out of a small town,” the actor tells PEOPLE about the dark HBO drama following the aftermath of a global cataclysm that results in the unexplained disappearance of 140 million people. “There’s a ton of new characters that are coming in to interact with which are really compelling, and there’s even a more spiritual bent to it.”

Theroux, 44, also previously told PEOPLE that the new setting of Jarden, Texas (nicknamed Miracle because it had zero “departures,” the show’s word for the Rapture-esque vanishing acts) is “a town that’s literally bordered by a fence. For my character Kevin Garvey and his insta-family, it’s a fresh start. But it boxes them in – in a weird and wonderful way.”

He continues, “Part of what makes it appealing for my family unit is we sort of had our dreams, as much as there are in Leftover land, fulfilled … so they go to sort of strike out.”

Theroux did his own striking out this summer in the form of a Bora Bora honeymoon with new wife Jennifer Aniston, and he previously told PEOPLE that he got a “big cheer” when he reported to the show’s Austin, Texas, set.

Still basking in his newlywed bliss seems to be a nice antidote to the bleak world of his character.

“Every time you get a new script, it’s like, ‘Oh boy, it’s going to go here.’ The walls to his struggles are high, but I enjoy it,” Theroux said.

The 44-year-old adds that viewers will ultimately reap rewards for sticking with the often tough-to-watch series because “the way Damon explains things to the viewer, he puts the cards down slowly. There are payoffs, but I think he does them in such a slow-burn, wonderful way, people who are paying attention will get it.”

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Season 2 of The Leftovers begins Sunday at 9 p.m. ET on HBO.