Gex is a smart alec, wise-cracking gecko. Gex lives with his family in Maui, Hawaii. He spends his days with his friends, surfing, playing the ukulele and throwing poi parties down on the beach with the local lady lizards. After his father dies, he begins watching mass amounts of TV to get over the tragedy. He eventually inherits over twenty billion dollars from his deceased uncle, and buys the world's largest television. He has his own island hideaway called the GEXCave located in the South Pacific. His catchphrase is "It's tail time!". Gex is voiced by Dana Gould in North America. The European version features three actors as his voice; Dana Gould in the original game, Leslie Phillips in first sequel, and Danny John-Jules in the final game.
Source: Wikipedia, "Gex (characters)," available under the CC-BY-SA License.