The founding member and singer, guitarist, composer of Deviser, Matt Chnaras, is recognised as one of the pioneers of the Greek black metal scene. Born in Crete island, he has lived in Athens since 1992. He was, also, the booking agent and production manager for Astra Music and High Voltage concert organizers. He also worked at Unisound Records for a few years in early ‘90s. Produced, mixed and mastered some releases, including Deviser’s third album Running Sore.