Kristy Swanson is an American actress from California. She has had an active acting career since the 1980s. Her most memorable role was playing the original version of Buffy Summers in the horror comedy "Buffy the Vampire Slayer" (1992).

Swanson was born in Mission Viejo, California, a planned community in Orange County. It is located in a hilly region, 49 miles (79 kilometers) southeast of Los Angeles. Swanson developed an interest in acting in early childhood. She started pursuing roles in television commercials at the age of 9, and first appeared in a commercial for doll houses. She continued to regularly appear in commercials for a few years.

Swanson received acting lessons from "The Actors Workshop", an acting school developed by Canadian actor R. J. Adams (1942 -2015). In 1984, Swanson started appearing in one-shot roles in television. She gained attention for playing Stephanie Brandon in the episode "On the Street" (1985) of the police procedural "Cagney & Lacey". Her character was a teenage prostitute who was considered a key witness in a murder trial. For this role Swanson was nominated for a Young performer award, the "Best Young Actress - Guest in a Television Series". The award was instead won by rival actress Jaclyn Bernstein.

In 1986, Swanson had the supporting role of Jennifer Davis in the television film "Mr. Boogedy", a ghost story about a haunted house in New England. She had a minor role in the teen comedy-drama film "Pretty in Pink" (1986). as the new love interest of the character Duckie Dale (played by Jon Cryer). She had her first speaking role in a film in "Ferris Bueller's Day Off", as a girl who announces a convoluted excuse to explain the main character's absence. Swanson had her co-starring role in a film in "Deadly Friend" (1986), a science fiction horror film by famed director Wes Craven. It gained a cult following over the following decades.

Swanson's next starring role was in the psychological horror film "Flowers in the Attic" (1987), concerning children held captive by their abusive family. She played Cathy Dollanganger, the elder sister among the captives. The film earned about 15,2 million dollars at the domestic box office. There were plans for a sequel film, but it ended in development hell. In 1987, Swanson joined the cast of the soap opera Knots Landing (1979-1993), in the recurring role of Jody Campbell. She appeared in a total of 8 episodes, leaving the series in 1988.

Swanson had her first main role in a television series in the short-lived medical drama "Nightingales" (1989), where she played student nurse Rebecca "Becky" Granger. The series was controversial at the time for its overly sexualized depiction of nurses. It inspired a protest campaign by the American Nurses Association, causing several sponsors to withdraw their support from their series. The series was canceled after a single season of 13 episodes, plus a television film. There was later a revival of the series' concept under the title "University Hospital" (1995), but Swanson was not involved with the revival series.

Swanson had her first film role in years in the romantic comedy "Dream Trap" (1990). The film depicted the romantic fantasies two teenagers have about each other. Her co-star for this film was Sasha Jenson (1964-). Swanson's next notable film role was in the fantasy comedy "Mannequin Two: On the Move" (1991). She played Jessie, a 14th-century peasant girl who was turned into a statue by a sorcerer. She is revived in the late 20th century, and falls in love with a descendant of her original lover. The film only earned 4 million dollars at the box office, failing to recover its production costs. It was marketed as a sequel to the hit film "Mannequin" (1987), while featuring none of its main characters.

Swanson had a supporting role in the comedy film "Hot Shots!" (1991). She played Kowalski, a female pilot of the United States Navy who is regarded as male by her peers and superiors. The film earned 180 million dollars worldwide, the highest earning film in Swanson's career at that time. Swanson had the co-starring role of Rachel Clark in the horror comedy "Highway to Hell" (1991). In the film, Rachel is kidnapped by a demon and taken to hell. She is about to be married to Satan, but her boyfriend Charlie Sykes (played by Chad Lowe) attempts to rescue her. The film only had a limited theatrical release, but was relatively popular in the home video market.

In 1992, Swanson had the leading role of Buffy in the horror comedy film "Buffy the Vampire Slayer" (1992). In the film, Buffy is a high school cheerleader with an ordinary life, who discovers that she is the latest in a long line of female vampire slayers. She has to stop a vampire army from taking over Los Angeles, at the cost of alienating her friends and losing her boyfriend. The film was modestly successful at the box office, earning about 17 million dollars. It was more successful in the home video market, and inspired the spin-off television series "Buffy the Vampire Slayer" (1997-2003). Swanson had no involvement with this series, replaced in the title role by Sarah Michelle Gellar (1977-).

Swanson had a supporting role in the sports drama film "The Program" (1993), as tennis player Camille Shafer. The character was the love interest of one of the main characters, American football player Joe Kane (played Craig Sheffer). Swanson shared the female lead status in this film with Halle Berry (1966-). The film highlighted the use of steroids in college football. The film earned about 23 million dollars at the box office, a modest hit for its time.

Swanson played the role of heiress Natalie Voss in the action comedy "The Chase" (1994). In the film, Natalie is kidnapped by escaped convict Jack Hammond (played by Charlie Sheen), because he wanted a hostage. It was commended for its satirical look at tabloid journalism, and at the obsession of television news shows with car chases. Swanson had a supporting role in the black comedy "Getting In" (1994). In the film, there are serial murders of students who are on the top of the list for admission to medical school. A student is trying to eliminate his competitors to get ahead on the list. It is remembered as the directorial debut for Doug Liman.

In 1995, Swanson had a co-starring role in the university-themed drama film "Higher Learning". She played Kristen Connor, an initially shy student who proceeds to explore her bisexual tendencies by pursuing two different romantic relationships at the same time. The film earned about 38 million dollars at the domestic box office, becoming the 44th highest-grossing film of its year. It was also successful at the home video market. From Swanson's perspective, it was the highest-grossing film of her career since 1991.

In 1996, Swanson appeared in the superhero adaptation "The Phantom". It was based on the character Phantom/Kit Walker, created by Lee Falk (1911 - 1999) in 1936. Swanson played Diana Palmer, the Phantom's love interest. The film earned about 23.5 million dollars at the domestic box office, but was a major hit in the home video market.

In 1997, Swanson had a co-starring role in the Mafia-themed black comedy "8 Heads in a Duffel Bag". In the film, mobster Tommy Spinelli (played by Joe Pesci) has to deliver a cargo of severed heads to a crime boss, as proof for recent deaths. His duffel bag is mixed up with the luggage of an American tourist, causing much trouble for everyone involved in the case. The film under-performed at the box office, only earning 4 million dollars.

In 1998, Swanson was part of the cast in the disaster film "Ground Control". The film concerned the efforts of air traffic controller to perform their duties during a severe storm and a power outage. Swanson was reduced to a supporting role in the comedy film "Big Daddy" (1999), playing an ex-girlfriend of the film's main character, slacker Sonny Koufax (played by Adam Sandler). In 2000, Swanson had a supporting role in the stoner comedy "Dude, Where's My Car?". She played one of several eccentric characters which the film's protagonists encounter in their search for a missing automobile. The film was a surprise box office hit, earning 73.2 million dollars at the worldwide box office. It was Swanson's highest grossing film in nearly a decade.

In 2001, Swanson played Interpol agent Tessa Jansen in the thriller film "Soul Assassin". The film depicted assassinations connected to a multinational banking firm. It was one of Swanson'ts last appearances in a feature film during the 2000s. Her career declined considerably during this decade. She was reduced to playing infrequent guest-star roles in then-popular television series, such as "Just Shoot Me!", "CSI: Miami", and "Law & Order: Criminal Intent".

In 2009, Swanson married her boyfriend Lloyd Eisler (1963-), a Canadian pairs skater who had won two Olympic medals. They have a son. In 2010, Swanson appeared in the Christian film "What If...", making her first appearance in a theatrical film in several years. She played Wendy Walker, the original girlfriend of businessman Ben Walker (played by Kevin Sorbo).

During the 2010s, Swanson appeared frequently in television films and direct-to-video films. She was part of the main cast in "Beethoven's Treasure Tail" (2014), the 8th and (so far) last film in the long-running film series "Beethoven" (1992-2014). In the early 2020s, Swanson continues to regularly appear in films. By 2021, Swanson was 52-years-old. She he has no intention to retire yet. Several of her older films remain popular, and she still has a fan following.