'Black Mirror's Jimmi Simpson on his favorite episodes, the big 'USS Callister: Into Infinity' reveal, and more

A tech billionaire guided by greed over good? Who does that remind you of?
 By 
Kristy Puchko
 on 
All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission.
Jimmi Simpson plays tech billionaire James Walton in "Black Mirror: USS Callister: Into Infinity."
Jimmi Simpson plays tech billionaire James Walton in "Black Mirror: USS Callister: Into Infinity." Credit: Nick Wall / Netflix

For Jimmi Simpson, getting cast on Black Mirror back in Season 4 was a dream come true. The character actor who's won critics' praise on everything from the madcap sitcom It's Always Sunny In Philadelphia to the sci-fi Western WestWorld to David Fincher's masterful true crime thriller Zodiac was a big fan of Charlie Brooker's anthology series. 

"When I first was invited to come for ['USS Callister'], it was my favorite show," Simpson said of Black Mirror in a Zoom interview with Mashable ahead of the Season 7 debut. "I couldn't believe it. And I had the exact same feeling [coming back for 'USS Callister: Into Infinity']."

Simpson was awed by the storytelling Brooker displayed within Black Mirror. "It's reminiscent to me of my early loves of Ray Bradbury, Isaac Asimov, and Rod Serling [The Twilight Zone]. When I saw those first two seasons, [Brooker] was predicting a very simple but truthful future that seems kind of inevitable. And they're always based in these human issues like fear, loneliness, need for connection." 


You May Also Like

These themes reverberate in Simpson's two favorite Black Mirror episodes, "Be Right Back" and "The Entire History of You," both of which involve in one way or another the loss of a romantic partner — one through death, the other through a brutal breakup. "It was shocking," he said of the impact of those Season 1 episodes. "It was like that shock of recognition that's so rare from current literature. I will say that was so raw, those episodes, so honest." 

Walton has sharper relevance in "USS Callister: Into Infinity." 

Jimmi Simpson's Walton gets attacked by Cristin Milioti's Clone Nannette in "USS Callister:Into Infinity."
Jimmi Simpson's Walton gets attacked by Cristin Milioti's Clone Nannette in "USS Callister:Into Infinity." Credit: Nick Wall / Netflix

In both "USS Callister" and its sequel, Simpson plays tech billionaire James Walton, who exists in the real world and as a digital clone in Infinity, the online video game he produced with designer Robert Daly (Jesse Plemons). 

He relished getting back together with the cast, which includes Plemons, Cristin Milioti, and Billy Magnussen, and enjoyed reflecting on "how pertinent" their first adventure as the crew of the USS Callister was. "And now even more so," Simpson explained, "Specifically with my character, Walton, an unobstructed tech billionaire, making ego-based choices that are destroying others — [that] is so current." 

"It was going to be fun to show, like, what an asshole, ludicrous fool someone like that is, and how it is just pure thoughtlessness that motivates all their bad choices and pure greed that motivates all their positive choices — for themselves," Simpson said, "So it was time to get in there and articulate those two elements of this guy."

Simpson refrained from naming which tech billionaire he could be talking about. But we have a guess.

Jimmi Simpson on Walton's "therapy" 

Jimmi Simpson plays tech billionaire James Walton in "Black Mirror: USS Callister: Into Infinity."
Jimmi Simpson plays tech billionaire James Walton in "Black Mirror: USS Callister: Into Infinity." Credit: Nick Wall / Netflix

In his first Black Mirror episode, Simpson would describe Walton as "a dick, selfish and thoughtless." But in "USS Callister: Into Infinity," real-world Walton reaches new depths of financial-driven selfishness. Spoiler alert: He not only is the one who gave Bob Daly the DNA machine that allowed the deranged gamer to create digital clones of others, but also, Walton did it to Bob first. Eleven years before Daly's human death, Walton pushed him to place a digital clone of himself at the "heart of infinity" so the game could constantly be worked on by Daly's genius, without rest. 

"To unpack [that], it's a thoughtless choice," Simpson said of Walton's plan to rush toward the game's release. "He is the genesis for all of the problems." The actor allows that Daly might have always been a brewing threat. "There's the argument of like, 'Well, Daly's crazy, and he was going to find a gun eventually.' I don't know if he would find a DNA cloner eventually, you know?"

Reflecting on Walton's choices, Simpson considered, "To find out that all of this [putting digital clones in the game] began because of a thoughtless moment where Walton said, 'Well, I think this will get the money in a little sooner.' And not to think once, what are you doing to this man? What does consciousness mean? [Walton is] a man who's never thought of that until episode one, and he's stripped of all of his power, and he's thrust into the Callister under Daly's control. And so that's where those characters break, and you allow the one, let's call it therapy. You know, Clone Walton has now been forced into therapy, and he's able to start processing what he's done, and it makes you a better person."

Jimmi Simpson, Jesse Plemons, Cristin Milloti, and the rest of the crew of "USS Callister."
Jimmi Simpson, Jesse Plemons, Cristin Milloti, and the rest of the crew of "USS Callister." Credit: Jonathan Prime / Netflix

He continued, "Thoughtless people get away with a lot. No, that's not an excuse. You need to be informed, especially if you're in a position of power. And this is how it mirrors today, right now. If you don't understand what you're doing, you're going to hurt people really, really bad. And if you're continuing to do it for your ego, God save you. I don't even know how you're going to recuperate."

It's these elements of genre, human growth, and real-world pertinence that make Simpson so happy to be a part of Black Mirror. "Storytelling is such the fireside, universal, shared experience," he mused, adding, "It's about community. It's about understanding ourselves, and it is about really enjoying the time passing. So that's what Black Mirror is to me."

Black Mirror Season 7 is streaming now on Netflix.

Mashable Image
Kristy Puchko

Kristy Puchko is the Entertainment Editor at Mashable. Based in New York City, she's an established film critic and entertainment reporter who has traveled the world on assignment, covered a variety of film festivals, co-hosted movie-focused podcasts, and interviewed a wide array of performers and filmmakers.

Mashable Potato

Recommended For You

25+ Amazon device deals live ahead of the Big Spring Sale: Echo, Fire TV, and more
Amazon devices with multicolor abstract background


35+ Amazon device deals in the Big Spring Sale: Echo, Fire TV, Kindle, and Blink
Amazon devices with multicolor abstract background

The Shark UV Reveal robot vacuum came out less than a month ago. It's already on sale for Amazon's spring sale.
Shark UV Reveal 2-in-1 robot vacuum highlighting stain and mopping hardwood floor near doorway

More in Entertainment
California just launched the country's largest public broadband network
Newsom stands behind a teen on a computer. A group of people cheer and clap behind them.

The Shark FlexStyle is our favorite Dyson Airwrap dupe, and it's $160 off at Amazon right now
The Shark FlexStyle Air Styling & Drying System against a colorful background.

Amazon's sister site is having a one-day sale, and this Bissell TurboClean deal is too good to skip
A woman using the Bissell TurboClean Cordless Hard Floor Cleaner Mop and Lightweight Wet/Dry Vacuum.

The best smartwatch you've never heard of is on sale for less than $50
Nothing CMF Watch 3 Pro in light green with blue and green abstract background

Reddit r/all takes another step into the grave
Reddit logo on phone screen

Trending on Mashable
NYT Connections hints today: Clues, answers for April 3, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 3, 2026
Wordle game on a smartphone


NYT Strands hints, answers for April 3, 2026
A game being played on a smartphone.

What's new to streaming this week? (April 3, 2026)
A composite of images from film and TV streaming this week.
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!