Glenn Stafford composed the orchestral-style music for many of Blizzard Entertainments video games, including the three Warcraft games, StarCraft and StarCraft 2, as well as the Super Nintendo games Blackthorne, Justice League Task Force and Death and Return of Superman.

Besides this, he performed voice work for characters in Warcraft II, III, StarCraft (which he also directed), Diablo, and World of Warcraft.