Mark Sorensen Jr. nació el 4 de marzo de 1962 en Philadelphia, Pennsylvania, Estados Unidos. Fue un actor, conocido por Filadelfia (1993). Murió el 17 de septiembre de 1993 en Pennsylvania, EE.UU..
One of the many AIDS patients who appeared in Filadelfia (1993), he was staying at his parents' home when Jonathan Demme rushed him an unedited videotape of the movie during post-production; Sorensen died the following day. Tom Hanks paid tribute to him in his Golden Globe acceptance speech the following January.
