 He also contributed, along with his Enslaved colleagues Arve Isdal and Herbrand Larsen and American actress Laraine Newman, in the animated television series "Metalocalypse" as one of "The Klokateers" in 2009.Another TV participations includes the documentaries "Showman" (2010) and "Metal Evolution" (2014), as himself.Kjellson is known to be openly anti-Christian and non-religious, but not Satanist.