High Quality Content by WIKIPEDIA articles! Jason Morgan (formerly Quartermaine; born Jason Moore) is a fictional character and one of the chief protagonists on the ABC soap opera, General Hospital. He was one of the longest-running characters on the show, having been played by various actors since the character`s on-screen debut in 1982. The role was played by Daytime Emmy Award-winning actor Steve Burton, who joined the cast in 1991 and left in 2012.