Matt Damon and David Letterman make surprise appearance in ‘The Gilded Age’ Season 4

See more of our coverage in your search results. Matt Damon and David Letterman shocked “Gilded Age” viewers with a blink-and-you-missed-it appearance during Sunday night’s Season 4 premiere. More than eight minutes into the episode, the “Good Will Hunting” actor, 56, and the comedian, 79, portrayed gentlemen crossing the street without saying a word. The camera panned over them to George Russell’s home, where Russell (portrayed by Morgan Spector) was recovering after getting shot at the end of Season 3. Matt Damon and David Letterman made a surprise appearance during the Season 4 premiere of “The Gilded Age” on Sunday. HBO The comedian and the “Good Will Hunting” actor (seen above in August) portrayed gentlemen crossing the street near George Russell’s home. AFP via Getty Images Damon looked unrecognizable in the scene with faux sideburns and a mustache. The “Odyssey” star rocked a top hat, a white shirt under a long black coat and a pair of slacks, while Letterman sported a bowler hat, a black long coat and slacks with his famous white beard on full display. Social media users had a heyday with the surprise, with one tweeting, “I thought I was seeing things!!” Another wrote, “I KNEW IT!!” Vulture reported that the cameo stemmed from the former “Late Show” host’s “nearly 50-year-long quest to become a background actor.” The actors did not have speaking roles. (Pictured: Letterman in November 2025.) Getty Images for RRHOF Social media users had a heyday with the blink-and-you-missed-it moment of the HBO show (pictured above.) Karolina Wojtasik/HBO Want more celebrity and pop culture news? Start your day with Page Six Daily. Thanks for signing up! After several failed attempts, Letterman and his “My Next Guest Needs No Introduction” team began researching Damon, who kicked off his career as a background actor alongside Ben Affleck, for a future episode. “We thought, ‘Okay, this could be the perfect opportunity,’” “My Next Guest” showrunner Isabel Richardson told the outlet. “It’d be really fun for Dave to do this with Academy Award–winner Matt Damon, and it tied into [Damon’s] origin story really well,” she explained. After a “My Next Guest” line producer soft-pitched the idea to a friend working on “The Gilded Age,” the idea was brought to Kate Churchill, the HBO show’s executive producer, who took the pitch to showrunner and creator Julian Fellowes, HBO head of drama Francesca Orsi and HBO CEO Casey Bloys. “I have to really give credit to our studios because a simple idea was actually quite complicated,” Churchill shared with Vulture. “I thought I was seeing things,” one X user quipped over the weekend. Karolina Wojtasik/HBO New episodes of “The Gilded Age” air on Sunday nights at 9 p.m. ET/PT on HBO. Photograph by Courtesy of HBO “Things like, Matt had to be paid as a background person, but of course he works under his own company,” she continued. “There were a lot of emails going around, but people really locked arms, and both studios saw that it was a fun collaboration where we could help each other.” Neither Damon nor Letterman were credited for their background roles. New episodes of “The Gilded Age” air on Sunday nights at 9 p.m. ET/PT on HBO. Community Guidelines Welcome to the Page Six Community! Our community is about connecting people through open and thoughtful conversations. We want our readers to share their views and exchange ideas in a safe space. In order to do so, we've created a simple set of rules that will improve your experience. Simply put, keep it civil. Your post will/might be rejected if it contains: Spam Insults, profanity, incoherent, obscene or inflammatory language and threats of any kind Attacks on the identity of other commenters or the article's author User accounts will/might be blocked if we notice: Continuous attempts to re-post comments that have been previously moderated/rejected Racist, sexist, or homophobic comments Attempts or tactics that put the site security at risk So, how can you be a power user? Stay on topic and share your passion. Feel free to elaborate to get your point across. 'Like' or 'Dislike' when you are filled with emotions! Protect your community. Use the report tool to alert us when someone breaks the rules. Thanks for reading our community guidelines. Don't forget, freedom of speech is not the freedom of reach!