Her parents divorced when she was a baby, and she was adopted by her stepfather shortly after he married her mother in 1968.
Was turned down by Jonathan Kaplan for the role of Sarah Tobias in The Accused (1988). This was Davis' first film audition. The part went to Jodie Foster.
She moved to Columbia, South Carolina, when her father (a psychology professor) transferred to the university there. She later attended Rutgers University, and upon graduation moved to New York, where she began working in classical and contemporary theater, as well as commercials. Before her arrival on "Melrose Place" (1992), Kristin and a friend opened a yoga studio. She still enjoys yoga in her free time, as well as spinning and running. She resides in Los Angeles.
Was written out of "Melrose Place" (1992) in 1996 after only being with the show a year, reportedly because the viewers hated her character, Brooke, so much and the writers did not know what to do with her.
She and her ex-boyfriend, Alec Baldwin, guest-starred on "Will & Grace" (1998) and "Friends" (1994), though not in the same episodes.
She is the only of the four main actresses from "Sex and the City" (1998) to guest-star on "Friends" (1994) and "Seinfeld" (1990).
Was the only one of the four actresses of "Sex and the City" (1998) not to get an Emmy nomination until 2004. She saw her three co-stars frequently nominated, but finally scored an Emmy nomination for the show's final season.
Ranked #42 in Stuff magazine's "102 Sexiest Women in the World" (2002).
Adopted a baby girl, Gemma Rose Davis [October 7, 2011].