Mark GrentellDirectingNo biography available.Known For5.7The Merger20186.3Backyard Ashes20136.7Quadrant2024Roborovski2020Imagine2026Fan ClubNo Nerds have favorited Mark Grentell yet — be the first.All fan clubsFrom NerdspinFilmographyDirecting2Production3Writing12018The MergerFilmDirector★ 5.72013Backyard AshesFilmDirector★ 6.3
