Kamen Casey is an American voice actor known for his work in English dubs of anime series and films, primarily for Crunchyroll (formerly Funimation). Born on June 7, 1991, he developed a foundation for performance by earning a Bachelor of Fine Arts in Theatre, specializing in acting, from Southern Methodist University in Dallas, Texas. Before establishing himself in voiceover, Casey built a diverse acting resume that includes on-screen roles in projects such as Taylor Sheridan's Landman and the film Black Adam. His background also includes being a 3rd Degree Black Belt in the Chuck Norris System, a skill that led him to win first place on FOX's television game show Superhuman.

In the realm of anime voiceover, Casey has built a career spanning nearly a decade, taking on a variety of supporting and leading roles that showcase his range. One of his notable early film roles was providing the voice for the judo club member nicknamed Thunder in the 2021 Funimation co-production film Sing a Bit of Harmony. In the same year, he began voicing Tsurayuki Rokuonji in the English dub of the anime series Remake Our Life!, a character who is a fellow student and part of the creative circle at the heart of the story. He also took on the role of Kei Matsuhashi in the sports anime Shoot! Goal to the Future.

Casey's career continued to gain prominence with roles in major hit series. He voices Reo Mikage in the immensely popular soccer anime Blue Lock, a character whose complex dynamic with his partner Seishiro Nagi is central to the story's emotional core. His work on the series was further explored in the 2024 film Blue Lock The Movie -Episode Nagi, where he reprised the role, noting in interviews that the film allowed him and his co-star to add more depth to their characters with the additional context the movie provided. In 2024, he also voiced Kyouya Nagi in the romantic anime A Sign of Affection, playing the older brother of the male lead. His other voice credits include roles in Frieren: Beyond Journey's End, My Hero Academia: Vigilantes, Solo Leveling, Beast Tamer, Mobile Suit Gundam: The Witch from Mercury, and The Fruit of Evolution: Before I Knew It, My Life Had It Made.

Throughout his career, Casey has frequently collaborated with the Crunchyroll production house and its regular pool of directors and fellow actors, including Jonathan Rigg, who directed the English dub of Blue Lock, and actors like Bryson Baugus and Jordan Dash Cruz. His achievements are marked by his ability to bring depth to a wide spectrum of characters, from the intense and ambitious Reo Mikage in a high-stakes sports drama to the more understated roles in romance and fantasy series. His performance in Blue Lock has been particularly noted for capturing the character's multifaceted personality, showcasing both his fierce dedication to his friend and his own personal journey within the cutthroat environment of the Blue Lock program.