- Landed her first acting job at age 10, playing an orphan in the Broadway musical Annie.
- Was 15 when she was cast as Lily Walsh on As the World Turns.
- Founded the annual Daytime Salutes St. Jude's Children's Research Hospital benefit in 1993.
- Was nominated for Daytime Emmys multiple times; she won Outstanding Younger Actress in 1987 and Outstanding Lead Actress in 2001.
- Two of her pregnancies were chronicled on TLC's A Baby Story: the 2002 birth of her second son and the 2006 birth of her daughter.
- Was hired as a writer for the daytime drama The Bold and the Beautiful in 2009.
- Annmarie McMahon — Daughter
- Michael Terrence McMahon — Son
- Mary Adele Byrne — Mother
- Michael McMahon — Husband
- Maxwell Vincent McMahon — Son
- Terrence Joseph Byrne — Father
Season 3, Episode 2
- Birth Name: Mary Martha Byrne
- Birth Place: Ridgewood, NJ
- Birthday: December 23, 1969, Capricorn
- Profession: Actor, Singer
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