From Halopedia, the Halo wiki
This article is about the Bungie Studios artist. For other people with this name, see Dunn.
David Dunn, also known as Dave Dunn, is an American writer, artist, and composer. He is a senior employee at Bungie Studios. He claims he was born during 1977, though this is very unlikely, because he still hasn't bothered to create a thorough profile at Bungie.net even though he is long time employee of Bungie.
His career began as a composer for the games Nonterraqueous and Elite during 1984 and 1985. He had also served as a story writer, artist, and level designing artist and modeler for the game Oni. He then served as an artist for Halo: Combat Evolved and the lead environment artist in Halo 2. He also did some voice over work playing the scared Crewmen who says, "Help me help you." etc During the development of Halo 3, he worked as the Campaign Environment Lead, and was credited as the Art Department Manager in Halo 3: ODST. He reprised the role in Halo: Reach.
Before working at Bungie, David worked at an architectural firm where he was known as the loose guy in the company.