"Doom Eternal" is more specific about The Slayer's characterization relative to the previous episode: Doomguy is seen without a helmet in first-person, and for the first time in the series' history, he also speaks, voiced in flashback by Matthew Waterson. According to the character description, he is 6'8" (203 cm) and weighs 360 lbs. (163 kg). He also follows the streak for irreverence: a room in his Fortress of Doom is filled with comic books, collectible figurines, guitars and a gaming computer.