John Carmack

John Carmack was born on August 20, 1970 in Roeland Park, Kansas, USA as John D. Carmack II. He is known for his work on Return to Castle Wolfenstein (2001), Half-Life (1998) and Doom 3: BFG Edition (2012). He has been married to Katherine Anna Kang since January 1, 2000. They have two children.