Steve Downes at Otakuthon
Steve Downes is an American DJ and voice actor. He is best known for his work as the voice of Master Chief in the popular Halo video game series. He worked as a disc jockey at Los Angeles, California, Album-oriented Rock radio stations KWST (1978-1981), KEZY-AM (1981-1982) and KLSX (1994), but is best remembered working evening drive at KLOS from 1982 to 1991. He frequently hosted the live call-in talk show, Rockline in the early 90s. Most recently, he works as the morning show host for 97.1 WDRV "The Drive" in Chicago, Illinois. Downes also hosts the nationally syndicated radio show, "The Classics".
Voice Acting 
Steve Downes has been in commercial voice since 1990. He has provided voices for several video games. His first experience in voice acting for video games came in 1999 when he played the role of Gunnar in the video game Septerra Core: Legacy of the Creator by Valkyrie Studios. Despite the relatively minor role, his performance caught the attention of the voice acting director and music composer of the game, Martin "Marty" O'Donnell. When Marty began working on the video game Halo: Combat Evolved at Bungie, he invited Steve to voice the game's main character, Master Chief.
Voice acting performances by Steve Downes include:
- Gunnar - in Septerra Core: Legacy of the Creator (1999)
- Master Chief - in Halo: Combat Evolved (2001)
- Master Chief - in Halo 2 (2004)
- Master Chief - in Halo 3 (2007)
- Master Chief (Firefight voice only) - in Halo: Reach (2010)
- Master Chief - in Halo 4 (2012)
- Master Chief - in Halo 5 (?)
- Master Chief - in Halo 6 (?)
- Star-Lord - in The Avengers: Earth's Mightiest Heroes (2012)