Currently one of the biggest successes in the world of animation, Rick and Morty has continued to expand to encompass entire new realities and multiverses. At the heart of the show is still the Sanchez-Smith family, often hanging on by a thread but capable of weathering anything. For Beth and Jerry, that means coming together despite marital strife, intergalactic threats, and unexpected cloning situations, somehow still remaining some of the more grounded characters in an ever-increasingly absurd setting.

Ahead of Rick and Morty's sixth season premiere on Sept. 2 on Cartoon Network's Adult Swim, Sarah Chalke (Beth/Space Beth) and Chris Parnell (Jerry) sat down with members of the press -- including CBR -- to discuss their initial relations to the new season's scripts, the challenges of playing different iterations of the same character, and what it's like delving into a show with the knowledge that it'll carry on for seasons to come.

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Reflecting on the upcoming season of the show after ScreenRant asked about their initial reactions to the scripts, Chalke recalled how "since day one of working on Rick and Morty, it’s always exciting when you get a new episode in your inbox. It has continuously surprised me as I read them. I mean, there's no way, without being in the writer’s room, that you can imagine where the show’s going to go... We don’t get a heads-up of an arc of the season or what’s gonna happen with your character, where it’s gonna go. So literally every time, it’s exciting and fun to read."

"You can’t help," Chalke continued, "but, as you’re reading it, you’re picturing this new multiverse or this alien battle or all these characters and these sentient alien cloud fart beings, and then you create this world in your head of what it’s gonna look like. So you kind of get to experience it twice: once when you read the script and then once when you get to see the episode... Some scripts from this season are my favorites that we’ve gotten to record. I think they’re really just so creative and so unique." Parnell agreed, noting, "I mean, it’s every season. You get the scripts one at a time, of course, and so it’s just, it’s exciting to get it and see where they’ve taken it. It’s never disappointing. The most disappointing thing is when I don’t have much to do in half the stuff -- but other than that, it's a treat."

RELATED: Rick & Morty’s Dan Harmon & Scott Marder on Season 5 Cliffhanger & the Show’s Future One of the unique challenges of Rick and Morty is the sheer scale of the universe. Each cast member has played numerous versions of the same character, sometimes with conflicting moralities and motivations. "With Jerry," Parnell explained, "I don’t have to go back and forth like that, but any time Jerry is having to go to a different place emotionally, or with really dark scenes, he’s in a very different place vocally... That’s fun, and it's very satisfying to get to do." For Chalke, this is especially true, as the introduction of Space Beth, a (possible) clone of Beth who ventured into the cosmos, gave Chalke an entirely different version of the mother to delve into.

"It’s exciting, and it’s challenging," Chalke admitted. "It's such a different thing that you don’t often get to do in any other part. I mean, it’s the first time that I’ve gotten to do that... In any show that goes the distance and that you get to play for multiple seasons, that already feels like a gift because that’s already rare. It allows you to just go further with the character and dig deeper into them, and you find out more about them, and you find out more about their backstory."

"The fact that now it’s Home Beth and Space Beth," Chalke explained, "that’s been a whole other experience. It's been really fun. We record them completely separately. So in a recording, we’ll do all of Home Beth, stop, go back, [and] do all of Space Beth because there is just a different flavor and a different texture to both of them. They’re coming from such a different place, and there’s so much more confidence with Space Beth. So even in a scene where Space Beth and Home Beth are going back and forth, we just separate the conversation... I was so happy that Space Beth wasn’t just in one episode and that we got to continue with her."

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This flexibility is especially relevant for Chalke, whose active role in the show's adventures has only increased over time. "At the beginning, when you read the pilot, you’re thinking, 'Okay, so there’s gonna be Rick and Morty, and they’re going to be going off on the intergalactic wild adventures, and you’re gonna be at home...' But especially in [Season 3's "ABCs of Beth"], where you realize why [Beth] is how she is and how much she’s actually like Rick, you understand so much more about her relationship with her dad and that dynamic and therefore her relationship with Jerry..."

Chalk continued, noting, "That was a really fun journey to play and to go on with Beth. To see how that dynamic has shifted even more as soon as Space Beth comes into the picture, how her relationship with Rick became so tied up with who’s the clone, and then the power dynamics shift. Now, both Beths took their power back by realizing, 'Oh, we actually don’t care that [much] which one of us is the clone...' I think one of the funnest parts of the show is there’s no relationship that is ever static. They’re constantly shifting. They’re constantly changing."

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As ScreenRant noted, Rick and Morty also carries a unique advantage over many other shows. The early confirmation from Cartoon Network and Adult Swim following Season 3 that an additional 70 episodes had been ordered gave the show's creatives and cast the knowledge that they were going to get plenty of extra time with these characters. "It’s so cool, I think, especially for the writers," Chalke pointed out, "to have the rare advantage of knowing that information and the freedom that gives them. For us, it was certainly very exciting to find out because obviously, this is a job that I would love to do forever and ever and ever till the end of time. Usually, you don’t have that. Usually, it’s season by season. You don’t find out that you’re gonna be doing 70 more episodes of something."

It also came as a relief to Parnell, who has been able to likewise delve further into Jerry as a result of the show's lengthy run. "Creatively," Parnell explained, "when you know that you’re going to be doing more episodes -- this is mostly for the writers, but [also] for everybody -- it gives you more confidence in it. It gives you a sense of being able to commit fully to breaking new stories and things like that. You’re not sitting around wondering, 'Oh, are we gonna do more? I wanna keep going but are they gonna keep paying us?' and that kind of thing. When you get a vote of confidence like that, and someone says, 'Here you go, you’re gonna be doing this for several more years at least,' it just helps. It’s just better for everybody, and especially creatively, I think, it makes a difference."

Rick and Morty returns with the Season 6 premiere on Sept. 2 as a part of the Adult Swim block on Cartoon Network.