{{Character Infobox |image = Image:Fretshredder.PNG |name = Marcus Fretshredder |first = Guitar Hero World Tour |genre = Power Metal, Scandinavian Folk Metal, Heavy Metal, Thrash Metal, Death Metal |likes = Dethklok, Being the guitarist |dislikes = Other guitarists stealing his fans |board = Tribal fretboard (GHWT, GHM, GHSH, Guitar Hero Live, and Rocksmith too) Marcus Fretshredder (Marcus Fjörn Fretshredder) is a great guitarist teacher and character in World Tour plus many others following in suit.Featured in the cutscenes and the Recording Studio as the Guitarist for a band with Riki Lee, Matty Cannz, and Shirley Crowley. He also is the instructor for the Guitar Tutorial. He is sweet,tenderhearted,and fun to be with .