Mark W. Moses (born February 24, 1958) is an American actor.

The tall, thin Moses began his career in New York City on daytime soaps and on and off-Broadway. After making his Broadway debut in "Slab Boys" alongside Kevin Bacon and Sean Penn, Moses caught the attention of casting directors and earned a spot in Oliver Stone's Oscar-winning "Platoon" (1986). He also played small roles in Stone's "Born on the Fourth of July" (1989) and "The Doors" (1991). Moses had a recurring role as Pamela Reed's boyfriend on the short-lived NBC's sitcom "Grand". After numerous guest appearances on episodic TV, Moses landed a regular role as Matt Parker during the first season of NBC's "The Single Guy". In his portrayal of a slightly offbeat workaholic, he exhibited an eccentric sense of humor coupled with razor-sharp comic timing. He currently stars at ABC TV hit "Desperate Housewives" as Paul Young, father of young and troubled Zach.