Keith Silverstein is an American voice actor, known for lending his voice to English versions of Japanese anime and video games. He is best known for his roles as Johan Liebert in Monster, Vector the Crocodile in the Sonic the Hedgehog video games, Robert E.O. Speedwagon in JoJo's Bizarre Adventure, Megumu Koyama in Mob Psycho 100, Hisoka in the 2011 version of Hunter × Hunter, Kurozumi Orochi in One Piece, Ōgai Mori in Bungo Stray Dogs, Ulric, Brute, and Rascal in Glitter Force, Gabriel Agreste a.k.a. Hawk Moth (Shadow Moth in season 4 and Monarch in season 5) and Betterfly in Miraculous: Tales of Ladybug & Cat Noir, Torbjörn Lindholm in Overwatch, Zhongli in Genshin Impact, and Epsilon in Pluto.

Keith Silverstein has also ventured into radio work, which includes doing the voices of FBI agent Peter Bourland and Santo in Focus on the Family's long-running Christian radio drama Adventures in Odyssey, George in I'll Be Home For Christmas, Carl in Sunday Chronicles, as well as multiple radio spots.