She gave up regular schooling at age 13 to focus on acting. Her parents, Bob and Rosemary, gave her home instruction. Her parents are retired physical education teachers.

Appears nude in the November 2002 issue of Playboy.

Her father Bob 'Swanie' Swanson played the referee in Buffy the Vampire Slayer (1992).

Between the ages of 9 and 13, Kristy appeared in over 30 television commercials.

Has co-starred with Charlie Sheen in 3 films: Ferris Bueller's Day Off (1986), Hot Shots! (1991), and The Chase (1994).

Played two roles in which she jumps through a second story window to stop someone from running away. The first was Samantha/BB in Deadly Friend (1986) and the second was a Medeival Slayer in Buffy the Vampire Slayer (1992).

Was the original Buffy in Buffy the Vampire Slayer (1992) before Sarah Michelle Gellar.

Son, Magnus Hart Swanson Eisler, born 15 February 2007, weighing 7 lbs. 11 oz. Father is her boyfriend, Lloyd Eisler.

She has one brother, Rob Swanson Junior (but he does not act or skate).

Kristy and Lloyd Eisler became the parents of their first child, a boy named Magnus Hart Swanson Eisler, on February 16, 2007. The baby weighed in 7 lbs. 11 oz.

Got her first acting job at age 9 in a commercial for a dollhouse.

Assault charges in Canada against her have been dropped. Was arrested in June, 2006 in Kingston, Ontario, Canada after an alleged altercation between her and her boyfriend's, Lloyd Eisler, ex-wife, Marcia O'Brien [October 31,2007].