From Halopedia, the Halo wiki
Norm Woodel is an actor and voice actor. His career began in 1990, His credits include television shows, movies, video games, and a very successful Voice Over Career. He has worked with Bungie Studios several times, most notably on Oni, though in 2004 he did some work in the sound department for Halo 2, doing the voicing of most of the Elites in the game. Woodel has AP and UPI Awards for Journalism and an EMMY, which he won as a Producer.