Matt Ryan (born 11 April 1981) is a Welsh actor from Swansea. He is known for voicing Edward Kenway in the Ubisoft video game Assassin's Creed IV: Black Flag, and portraying John Constantine in Constantine, The CW shared television Arrowverse, voicing the character in the 2017 film Justice League Dark and the CW Seed web series Constantine. Description above from the Wikipedia article Matt Ryan (actor), licensed under CC-BY-SA, full list of contributors on Wikipedia.