Keith Silverstein is an American voice actor recognized for his extensive work in English dubs of Japanese anime and video games. Born on December 24, 1970, in Plainfield, New Jersey, he began his voice-over career in the late 1990s and has since become a prominent figure in the industry. His early work involved voicing characters for various anime series and non-union projects, gradually building a diverse portfolio.

Silverstein's career is marked by a wide array of significant roles in major anime franchises. He is known for portraying complex and often villainous characters, such as the manipulative Johan Liebert in Monster, a role for which he received critical praise. He also voices the cunning and flamboyant Hisoka in the 2011 version of Hunter × Hunter, the enigmatic Robert E. O. Speedwagon in JoJo's Bizarre Adventure, and the ambitious Masayoshi Shido in Persona 5 the Animation. His filmography includes the role of Gouhin in BEASTARS, En in Dorohedoro, Monspeet in The Seven Deadly Sins, Masamichi Yaga in Jujutsu Kaisen, Ernst Zimmerman in 86, Albert Elfrieden in How a Realist Hero Rebuilt the Kingdom, and Floki in the Netflix dub of Vinland Saga. He has also had recurring roles in long-running series such as Naruto (as Kimimaro), Bleach (as Coyote Starrk), and the Viz Media dub of Sailor Moon (as Kenji Tsukino and Professor Tomoe).

Beyond anime, Silverstein has lent his voice to numerous animated series and films. He is particularly well-known for his portrayal of Gabriel Agreste / Hawk Moth in the international hit Miraculous: Tales of Ladybug & Cat Noir. His other animation credits include roles in Transformers: War for Cybertron Trilogy as Jetfire, Amphibia as Barry, and Teenage Mutant Ninja Turtles as Kirby O'Neil.

Silverstein's voice is also highly recognizable in the video game industry. He is the voice of Zhongli in the global phenomenon Genshin Impact and Torbjörn in Overwatch. For fans of the Sonic the Hedgehog franchise, he is the long-standing voice of Vector the Crocodile. His extensive video game credits further include H.U.N.K. in the Resident Evil series, Zasalamel in the Soulcalibur series, and Shen in League of Legends. He also voiced Full Frontal and Char Aznable in the Mobile Suit Gundam: The Origin series.

Throughout his career, Silverstein has demonstrated a consistent vocal presence across numerous projects, often working with major dubbing studios and sharing credits with a frequent circle of fellow voice actors. His ability to portray a wide spectrum of characters, from heroes and mentors to villains and anti-heroes, has made him a sought-after talent. He has been a guest at various anime conventions, including Sakura-Con and the New England Anime Society, reflecting his popularity and engagement with the fan community.