![In the new Commander Keen trailer you can see a framed picture of William J. Blazkowicz, his grandpa. So I guess Billy Blaze IS the Doom Slayer : r/ Doom In the new Commander Keen trailer you can see a framed picture of William J. Blazkowicz, his grandpa. So I guess Billy Blaze IS the Doom Slayer : r/ Doom](https://preview.redd.it/g4hd2icne2b31.png?width=640&crop=smart&auto=webp&s=092848f2670e6491a59b5fda8364ad5696276160)
In the new Commander Keen trailer you can see a framed picture of William J. Blazkowicz, his grandpa. So I guess Billy Blaze IS the Doom Slayer : r/ Doom
![Marphy Black on Twitter: "@wolfenstein @machinegames @DOOM @idSoftware All right, @PlayKeen, I'm going to need your help here too. We know Doomguy aka Doom Slayer aka Flynn is a descendant of Commander Marphy Black on Twitter: "@wolfenstein @machinegames @DOOM @idSoftware All right, @PlayKeen, I'm going to need your help here too. We know Doomguy aka Doom Slayer aka Flynn is a descendant of Commander](https://pbs.twimg.com/media/EDEPxadWkAQ2wfT.jpg:large)
Marphy Black on Twitter: "@wolfenstein @machinegames @DOOM @idSoftware All right, @PlayKeen, I'm going to need your help here too. We know Doomguy aka Doom Slayer aka Flynn is a descendant of Commander
![Twitter 上的JikissGamer:"As promised, here is the Commander Keen reference in Doom 2. https://t.co/Lu6wAvpeqK" / Twitter Twitter 上的JikissGamer:"As promised, here is the Commander Keen reference in Doom 2. https://t.co/Lu6wAvpeqK" / Twitter](https://pbs.twimg.com/media/ChanrMRWkAEXJF-.jpg)