Margaret Whitton (born November 30, 1950) is an American stage, film and television actress, originally from Philadelphia, Pennsylvania. Her first work was on the New York stage, where she worked as a dog walker between parts. She first noticeably appeared on the stage in 1973, billed as Peggy Whitton. In the early 1980s, she began to be billed as Margaret Whitton and made her Broadway debut in 1982's Steaming.
Whitton did her primary film work between 1986 and 1993. Her most visible roles were that of baseball team owner Rachel Phelps in Major League (1989) and it sequel Major League II, and as Michael J. Fox's vibrant, sexy and under-appreciated aunt-by-marriage in The Secret of My Success (1987). She appeared in the Robin Williams-Kurt Russell vehicle The Best of Times (1986) and in Mel Gibson'sThe Man Without a Face (1993). Her other films roles included parts in National Lampoon Goes to the Movies (1982), Love Child (1982) and 9 1/2 Weeks (1986) as Molly.