Jason Harris is an American voice actor and former TV host. He was the host of the short-lived, Double Dare 2000, and was a host of Big Help on the Road in the late 1990s, both on Nickelodeon. He was the voice of Numbuh 274 on Codename: Kids Next Door, and was the titular character of Top Cat: The Movie, as well as Choo-Choo, Brain, Griswald, Strickland and Big Gus.