Question: is bj blazkowicz related to doomguy?
Answer: The official canon is that Wolfenstein's BJ Blazkowicz is Commander Keen's grandfather, and that Commander Keen is Doomguy's father. That means that BJ is Doomguy's great-grandpa. As for the generation that's unaccounted for, Hall jokingly says that Keen's dad was a newscaster named Blaze.