Web382k subscribers in the criticalrole community. Youtuber and instructor for the pathfinder school. 🎚🌲🪓⛺️ please visit me on. Webmatt mercer (@mattallica__) • instagram photos and videos. Webnov 30, 2018 · critical role started when actress felicia day heard about the private game held between several voice actors including liam o'brien, matthew mercer, ashley.