Family
- grandfather Harry Crane: died of cancer on September 13, 1999 at age 85
- grandmother Julia Crane: former Miss Brooklyn
- father Paul Gilbert: adoptive father; deceased
- mother Barbara Crane Cowan: adoptive mother
- step-father Warren Cowan:
- son Michael Garrett Boxleitner: born on October 6, 1995; born 2 1/2 months prematurely; named for actor Michael Landon
- brother Jonathan Gilbert: born in 1967; appeared on "Little House on the Prairie"
- half-sister Sara Gilbert: born in 1975; co-starred in the series "Roseanne"
- step-son Sam Boxleitner: born in 1980
- step-son Lee Davis Boxleitner: born in 1985
- son Dakota Paul Brinkman: born on May 1, 1989; at age nine, went to live with father in Texas
Companions
- Tom Cruise: dated in 1982
- Rob Lowe: together c. 1982 to 1987; engaged
- husband Bo Brinkman: married February 21, 1988; divorced
- Dylan McDermott: dated briefly
- husband Bruce Boxleitner: married January 1, 1995; starred in the cyber-film "Tron" (1982)
