Has a brother, Monty.

Her younger sister Cammie McGovern is a novelist, whose latest novel [2006] is "Eye Contact."

Was engaged to Sean Penn after falling in love on the set of Racing with the Moon (1984).

Measurements: 34B-23-32 (Source: Celebrity Sleuth magazine)

As a young actress on the New York stage, McGovern was required in one play to pray over some candles that were set on a bed. Realizing that the bed had caught fire halfway through her monologue, McGovern kept talking while trying to pat out the flames. She thought she had the situation pretty well under control, when firefighters suddenly arrived onstage to clear the theater.

Sings and plays guitar in her own band "Sadie And The Hotheads".

Dropped out of college when she was studying acting at Julliard in order to accept the ingenue role in Ordinary People (1980).