From Halopedia, the Halo wiki
Todd Licea, sometimes credited as "R. Todd Licea", is an American actor. Born on September 8, 1965 in Miali, Florida, USA, his career began in 1996 with a guest role on the popular children's TV show Bill Nye the Science Guy. His career since then has been diverse. He has landed roles in movies and video games with clearly religious themes, such as the television show Amazing Grace and secular parodies of religion such as Gory Gory Hallelujah. He has also given voice roles in a number of video games, including Alien vs. Predator 2, The Suffering, and his most recent role in F.E.A.R.: First Encounter Assault Recon.
Also among these credits is Halo: Combat Evolved. He was credited as the Cryo Assist and various crashing dropship pilots. He would continue with the Halo series, providing voices in Halo 3, Halo 3: ODST and Halo: Reach.