| Neil Simon | (25 October 1973 - 1981) (divorced) |
| Gary Campbell | (1965 - 1970) (divorced) |
Met Neil Simon while rehearsing his play, 'The Good Doctor'. They were married three weeks later. The Simon play 'Chapter Two' was the semi-autobiographical story of his life with Mason. Although Mason was in the screen version of Chapter Two (1979), she never played the role on-stage.
The character she played in Promises in the Dark (1979) (Dr. Alexandra Kendall) was inspired by Los Angeles oncologist Dr. Alexandra Levine (who is listed in the credits as an advisor).
Born 11:12am-CWT
Passed on the title role in Norma Rae (1979), which won Sally Field a Best Actress Oscar.
Narrator for the recorded queue and boat show for the "Living with the Land" boat ride attraction in Epcot at Walt Disney World, Florida. (1992)
Beat out Barbra Streisand for the lead role in the film Cinderella Liberty (1973). Streisand was the studio's choice for the part. Marsha won her first Oscar nomination.
Ex-sister-in-law of Danny Simon.
Attended Nerinx Hall High School, the same small, private all-girls high school in Webster Groves Missouri that "Office" actress Jenna Fischer attended.
(December 2001) currently running her own herbal medicine business called Resting In The River. Business is both sales and manufacturing of medicine. Medicines are made from her own herb garden in Albuquerque, New Mexico.
(November 2003) Recently finished performing in the Off-Broadway play 'Wintertime' at the McCarter Theater in Princeton, NJ
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