Mark Dias
From Halopedia, the Halo wiki
Mark Dias is an American actor whose career began with video game Nightforce (1987).
Dias voices Private Manuel Mendoza in Halo: Combat Evolved and PC. Interestingly enough, another of his credits is Mario Golf 64, a game to which fellow Halo voice actors Mike Madeoy (Private Bisenti) and Jen Taylor (Cortana) also contributed.
