From Halopedia, the Halo wiki
|There is more information available on this subject at Alan Tudyk on the English Wikipedia.|
Alan Wray Tudyk (born March 16, 1971) is an American actor, best known for his roles as Hoban "Wash" Washburne on the space western TV series Firefly and Sonny in the film adaptation of Isaac Asimov's I, Robot.
Tudyk voices a UNSC Marine NPC in Halo 3. He also voices PFC Michael "Mickey" Crespo in Halo 3: ODST. In Hunt the Truth, Tudyk voices Captain Noah Reibach.