Cobra Kai’s Breakout Star Lands New Thriller A Year After Karate Kid Spinoff Ended

Published Nov 14, 2026, 2:16 PM EST Maggie Dela Paz is a News and TV writer at ScreenRant. She has nearly a decade of professional experience in writing entertainment articles about a wide range of topics, including movies, television, music, anime, streaming, and more. One Cobra Kai breakout star has landed a new thriller. For six seasons, Tanner Buchanan portrayed Robby Keene — the rebellious son of William Zabka's Johnny Lawrence and later one of Miyagi-Do's brightest martial arts students — in Netflix's popular Karate Kid spin-off. Cobra Kai season 6 ended with Robby reconciling with his father after gracefully accepting the results of his intense Sekai Taikai match. Since the show's conclusion, Buchanan has only starred in one episode of Star Wars: Visions season 3, but he has finally found his next major live-action project. According to Variety, Buchanan, Dylan Sprouse, and Barbie Ferreira have officially signed on to lead the new psychological thriller movie, The Sleeping Dogs of Southampton. The Cobra Kai star has been tapped to play banker Henry Barrett, while the Suite Life of Zack & Cody star will play Wall Street rainmaker, Dorsey Grace. As for Ferreira, the Euphoria vet has been tapped to portray Henry's wife, Lindsay. The trio is no strangers to the thriller genre. While Buchanan is best known for his Cobra Kai stint, his first major TV role was in Netflix's political thriller series Designated Survivor. He also appeared in thriller movies like Max Winslow and the House of Secrets and Sinister Seduction,both released in 2019. Before landing The Sleeping Dogs of Southampton, Sprouse also starred in the 2024 action thriller Aftermath and the 2025 crime thriller Neglected. The latter was his first collaboration with director David Lipper. Meanwhile, Ferreira has appeared in three horror-thriller movies such as Nope, House of Spoils, and Faces of Death. The Sleeping Dogs of Southampton is described as a psychological thriller that brings the audience into the "dangerous world of sex, money, and obsession.” The story follows rising, hyper-competitive banker Henry Barrett as he gets dragged into a lethal game of corporate and psychological chess against a ruthless Wall Street rainmaker who seems connected to his wife. The film will take place over the summer in the Hamptons, where Henry will find himself mingling with Manhattan's wealthy elite. The Sleeping Dogs of Southampton is directed and produced by Lipper, from a screenplay written by Peter James Cooper. Also joining the cast are Jack Kilmer (The Nice Guys), Rainey Qualley (Shut In), Bianca Ghezzi (The Idol), and Ethan Cutkowsky (Shameless). Robert A. Daly Jr. produced the film for Latigo Films, with Kipp Tribble and Rick Moore also producing, and Kevin Weisberg, Ryan Adams, Tracey Paul, Andrew Stevens, Sean Krajewski, Andrea Bucko, Manuel Molina, Timothy Alek Mulley, and Jeff Kranzdorf serving as executive producers. Production on The Sleeping Dogs of Southampton has already wrapped. The film currently has no release date yet, as Highland Film Group just launched its worldwide sales at the American Film Market. Tanner Buchanan