Chris Niosi is an American voice actor, animator, and producer known for his extensive work in anime dubbing, animation, and video games. Born on December 31, 1988, in Northport, New York, and raised on Long Island, he developed an early interest in animation and voice performance, which he later pursued professionally after attending the School of Visual Arts in New York City.

Niosi began his career in the mid-2000s by creating popular animated content for online platforms like Newgrounds under the pseudonym Kirbopher. His early work included Nintendo-based parodies and the creation of his own web series, Terrain of Magical Expertise (TOME), which he wrote, animated, and voiced. This project helped establish his presence in the online animation community and demonstrated his multifaceted talents as a creator. His first professional voice acting role came in 2009 when he was cast as Khoury in the Pokémon anime series.

Throughout the 2010s, Niosi became a prominent figure in English-dubbed anime, securing a wide array of significant roles. He is perhaps best known for his portrayal of the charismatic con artist Arataka Reigen in Mob Psycho 100 and its follow-up, Mob Psycho 100 REIGEN: The Miraculous Unknown Psychic. He also voiced the proud knight Julius Euclius, appearing in Re:Zero − Starting Life in Another World and its comedic spin-off, Isekai Quartet, as well as its second season. His other notable anime roles include the powerful mage Skargo in In the Land of Leadale, the cunning Kaede Manyuda in Kakegurui, and Garma Zabi in Mobile Suit Gundam: The Origin: Advent of the Red Comet. In addition to these, he voiced the protagonist Haruo Sakaki across the trilogy of Godzilla anime films: Planet of the Monsters, City on the Edge of Battle, and The Planet Eater. His film dubbing work also includes roles in Patema Inverted as Lagos and Napping Princess as Morio Sawatari.

Beyond these prominent parts, Niosi's career is marked by a high volume of credits across various genres and studios. He voiced multiple characters in the Pokémon Generations web series, including Brycen, Burgh, and Colress, as well as Harry Creighton in the Netflix anime Hero Mask. In the world of video games, he is known for his performances as the thief Therion in Octopath Traveler and Dezel in Tales of Zestiria, a role he reprised in the anime adaptation Tales of Zestiria the X. His work also extended to western animation, where he became a series regular on Cartoon Network's OK K.O.! Let's Be Heroes, voicing multiple characters including Nick Army, Neil, Pird, and Ernesto. This role was significant as it led to him joining the SAG-AFTRA union. He also voiced Pegasus in the Viz Media redub of Sailor Moon SuperS.