Oblivion Guest (a.k.a. Hunter Barr) is a producer, composer, musician and performer from the Retina II Studio stable. He is best known as a founder member of KnifeLadder and continues his studio work and tours with the groups Black Light Ascension, AntiValium, This Is Radio Silence and Naevus. He has also been a long standing producer for the artist Andrew King and a long-term member and producer for Altered States. His most recent collaboration is as Oblivion Guest with Una Shamaa, a dancer/performer for oriental, gothic fusion and creative dance, creating improvised soundscapes and movement.