Peter Marks was a game and level designer. He worked as a multiplayer artist for Halo: Combat Evolved, and designed and built the level Hang 'Em High. Since then he has worked at several other major industry players such as Ubisoft and Rockstar.

Peter Marks was diagnosed with an aggressive form of cancer and on 9/7/2009, at 11:35 PM, Bungie updated their original Letter For Support to say that Peter Marks passed away as a result of his cancer.