Marc Diraison is an American voice actor, ADR director and script writer who has worked for Bang Zoom! Entertainment, NYAV Post, 4Kids Entertainment and DuArt Film and Video. He is best known as the English voice of Guts in Berserk animated adaptations, specifically the 1997 anime adaptation and . He has also portrayed Akihiko Kayaba in Sword Art Online and Tokiomi Tohsaka in Fate/Zero.