Sam Rappaport is a fictional character from the long running ABC soap opera One Life to Live. The role was originated by actor Kale Browne from March 5, 1998, through April 11, 2001. The role was assumed on the episode first-run May 8, 2001, by former All My Children actor Laurence Lau, known for his prior role on the latter as Greg Nelson. Lau left the role on April 9, 2003.