- Suffered from allergy-induced asthma when she was a child; outgrew the condition in her teen years and became an accomplished gymnast, scuba diver and surfer.
- Appeared uncredited in the 1972 drama One Is a Lonely Number, serving as a body double for star Trish Van Devere in a diving scene.
- First credited film role was a one-line part in the 1973 classic American Graffiti; she was chosen by director George Lucas during an audition at Tamalpais High School, where the movie's sock-hop scene was shot.
- Made her New York stage debut in 1979 in Thomas Babe's Taken in Marriage, for which she won a Theatre World Award.
- For her role on the CBS drama Family Law, her contract stipulated that her workday would end no later than 6pm so she could spend more time at home with her family.
- 1995, Screen Actors Guild Awards — Outstanding Performance by a Cast in a Motion Picture: Winner
- 1978, Golden Globe — Best Performance by an Actress in a Motion Picture - Drama: Nominee
- 1996, Golden Globe — Best Performance by an Actress in a Supporting Role in a Motion Picture: Nominee
- 1995, Oscar — Best Performance by an Actress in a Supporting Role: Nominee
- Bruce Abbott — Husband
- Al Pacino — Ex-significant Other
- Josephine Quinlan — Mother
- Tyler — Son
- Robert Quinlan — Father
- Dalton — Stepson
- Birth Name: Kathleen Denise Quinlan
- Birth Place: Pasadena, CA
- Profession: Actor
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