Christopher Vincent Metzen (born 1974) is an American game designer, artist, voice actor and author known for his work creating the fictional universes and scripts for Blizzard Entertainment's three major award-winning media franchises: Warcraft, Diablo and StarCraft. On occasion, Metzen has published his art under the alias "Thundergod". Metzen was hired by Blizzard Entertainment as an animator and an artist; his first work for the company was with the video game Justice League Task Force.
Metzen is currently the vice president of creative development at Blizzard Entertainment and has assisted the company's projects by providing voice talent for a number of characters, as well as contributing to artistic character design. Outside of Blizzard Entertainment, Metzen authored a graphic novel series based on a futuristic second American civil war.