Jeff McGibbonActingNo biography available.Known For6.9My Pet Monster19875.2Clarence1990Fan ClubNo Nerds have favorited Jeff McGibbon yet — be the first.All fan clubsFrom NerdspinFilmographyActor21990ClarenceFilmBrent's Classmate★ 5.21987My Pet MonsterTVMonster (voice) • 13 episodes★ 6.9
