Matthew Darren Evans (born April 11, 1981), known professionally as Matt Ryan, is a Welsh actor. He voiced John Constantine on Harley Quinn.
His portrayal of Constantine on Harley Quinn was the fourth iteration of the character played by Matt Ryan and marked the 12th piece of media where he appeared as Constantine. His most well-known portrayal is perhaps the live-action version appearing in various shows belonging to the Arrowverse but he also voiced the character multiple times in media belonging to the DC Animated Movie Universe and in the short Constantine: The House of Mystery.