Trivia

Gave birth to her 1st child at age 43, a son named Phineas Davidson on October 11, 2009. Child's father is her third husband, Jeremy Davidson.

Gave birth to her 4th child at age 46, a son in October 2012. Child's father is her 3rd husband, Jeremy Davidson.

Gave birth to twins (her 2nd and 3rd children) at age 45, a son named Wilder Davidson & a daughter named Clio Davidson in August 2011. Children's father is her 3rd husband, Jeremy Davidson.

Daughter of writer/director/actor Peter Masterson and actress Carlin Glynn.

Learned to smoke at age 18 for her role as Danni in Heaven Help Us (1985). It took her over 20 years to quit the habit.

Was nominated for Broadway's 2003 Tony Award as Best Actress (Featured Role - Musical) for a revival of "Nine The Musical."

Mary Stuart's first significant on-screen line in Atrapadas: las mujeres perfectas (1975) was "Daddy, I just saw a man carrying a naked lady."

Listed as one of twelve "Promising New Actors of 1987" in John Willis' Screen World, Vol. 39.

She has received an Outer Critics' Circle Award nomination (2003) for Best Supporting Actress in the new revival of the Broadway musical "Nine".

She has received a Drama Desk Award nomination (2003) for Best Supporting Actress in the new revival of the Broadway musical "Nine".

Sister of actress Alexandra Masterson and actor Peter Masterson.

Theatre World Award winner for her performance in the 2003 production of the Broadway musical "Nine".

Sister-in-law of Jennifer Tost.

Gave an interview in the 1980s in which she admitted to being a serious basketball fan.

Born on the same date as John Cusack.