Charles Martinet

From the Super Mario Wiki

Charles Martinet, voice of Mario.

Charles Martinet (pronounced mar-tin-AY), born September 17, 1955 in San Jose, California, is the prominent voice actor of the Mario games. He plays the major characters Mario and Luigi (as well as their baby counterparts), Wario and Waluigi, and Toadsworth; as well as minor characters such as Wart. Martinet plays the vast majority of the male characters in the Mario series. The Internet Movie Database attributes over 70 works to Martinet in total.

Martinet's first job voicing Mario began in 1994, when he would have motion sensors hooked to his face, which would interpret his facial movements to a computer-generated Mario head on a screen. Martinet would watch those passing by the screen through a surveillance camera and could talk to them, as Mario. This was used rather often by Nintendo when attending trade shows. An altered form of Mario In Real Time (MIRT) appeared in 1995's Mario's FUNdamentals, with Martinet's voice, though most consider Mario's voice debut to be Super Mario 64 in 1996.

Martinet speaks fluent French and Spanish, but, ironically, only a little Italian.