Gex is a platformer video game series, developed by Crystal Dynamics, that details the adventures of an anthropomorphic gecko named Gex. Gex has a passion for TV, which makes him a target for the cybernetic being, Rez, who is determined to overthrow The Media Dimension, the "world" of television. He has also served as the mascot of Crystal Dynamics, appearing on their company logo for several years. In the North American version, Gex is voiced by comedian Dana Gould throughout the entire series; The United Kingdom version features Dana Gould, Leslie Phillips and Danny John-Jules as Gex's voice throughout the series.
Source: Wikipedia, "http://en.wikipedia.org/wiki/Gex_(series)," available under the CC-BY-SA License.