Born: March 24, 1974
Birthplace: Washington, D.C., U.S.
Alyson Lee Hannigan (born March 24, 1974) is an American actress. She is best known for her roles as Willow Rosenberg on the television series Buffy the Vampire Slayer (1997-2003), Lily Aldrin on the sitcom How I Met Your Mother (2005-2014), and Michelle Flaherty in the American Pie film series (1999-2012).
Hannigan was born in Washington, DC, the only child of Emilie (Posner) Haas, a real estate agent, and Al Hannigan, a truck driver. Her father is of Irish ancestry and her mother is Jewish. Her parents divorced when she was two, and she was raised mostly by her mother in Atlanta, Georgia.
At age four, Hannigan began appearing in commercials. She moved to Hollywood at age 11. Living with her mother and attending North Hollywood High School, she successfully auditioned for agents while visiting her father in Santa Barbara. After attending North Hollywood High School, she attended California State University, Northridge, where she was a member of the Alpha Chi Omega sorority and earned a degree in psychology.
Hannigan's first major film role was in My Stepmother Is an Alien, a science-fiction comedy released in 1988; one of her co-stars in the film was actor Seth Green, who later joined her in the regular cast of Buffy as her on-screen boyfriend. Then in 1989, her first regular role on a TV series came when she was cast in the short-lived ABC sitcom Free Spirit. As a teenager, Hannigan babysat for the children of her future How I Met Your Mother costar, Bob Saget.
In 1997, Hannigan was cast to play Willow Rosenberg, Buffy Summers' best friend, on the television series Buffy the Vampire Slayer. The show became a success, and Hannigan gained recognition, subsequently appearing in several films aimed at teenaged audiences, including American Pie (1999), Boys and Girls (2000), American Pie 2 (2001), and American Wedding (2003). She also had a guest spot on the Buffy spin-off, Angel, reprising her role of Willow in a few episodes (including most notably "Orpheus", during the fourth season of Angel and the seventh season of Buffy), but none after Buffy finished production.
In early 2004, Hannigan made her West End debut, starring in a stage adaptation of When Harry Met Sally... at the Theatre Royal Haymarket, opposite Luke Perry.
In 2005, Hannigan returned to starring in a regular television series, taking the main role of Lily Aldrin in the hit comedy How I Met Your Mother, and also playing a recurring guest role on Veronica Mars as Trina Echolls. In February 2006, Hannigan starred as Julia Jones in Date Movie, a parody of romantic comedies. She was also a guest star on the ABC animated sitcom The Goode Family in 2009.
Hannigan joined forces with Emily Deschanel, Jaime King, Minka Kelly, and Katharine McPhee in a "video slumber party" featured on FunnyorDie.com to promote regular breast cancer screenings for the organization Stand Up 2 Cancer.
In 2012, Hannigan reprised the role of Michelle in American Reunion.
Since 2016, Hannigan has hosted the television series Penn & Teller: Fool Us.
Hannigan married her Buffy the Vampire Slayer recurring co-star Alexis Denisof at Two Bunch Palms Resort in Desert Hot Springs, California, on October 11, 2003. The couple have two daughters, Satyana Marie Denisof, born on March 24, 2009 (which is also Alyson Hannigan's birthday) and Keeva Jane Denisof, born May 23, 2012. Alyson and Alexis live with their two daughters in Encino.
|1986||Impure Thoughts||Patty Stubbs|
|1988||My Stepmother Is an Alien||Jessie Mills|
|1998||Dead Man on Campus||Lucy|
|1999||American Pie||Michelle Flaherty|
|2000||Boys and Girls||Betty|
|2001||American Pie 2||Michelle Flaherty|
|2001||Beyond the City Limits||Lexi|
|2003||American Wedding||Michelle Flaherty|
|2006||Date Movie||Julia Jones|
|2007||Farce of the Penguins||Hottie Penguin (voice)|
|2011||Love, Wedding, Marriage||Courtney|
|2012||American Reunion||Michelle Flaherty-Levenstein|
|2016||Do You Take This Man||Rachael|
|1989-90||Free Spirit||Jessie Harper||Main role (14 episodes)|
|1990||Roseanne||Jan||Episode: "Like, a New Job"|
|1991||Switched at Birth||Gina Twigg, Age 13-16||TV movie|
|1993||Almost Home||Samantha||2 episodes|
|1994||Touched by an Angel||Cassie Peters||Episode: "Cassie's Choice"|
|1995||The Stranger Beside Me||Dana||TV movie|
|1996||A Case for Life||Iris||TV movie|
|1996||For My Daughter's Honor||Kelly||TV movie|
|1996||Picket Fences||Peggy Patterson||Episode: "To Forgive Is Devine"|
|1996||Friends for Life||Emma Daniels||Pilot|
|1997-2003||Buffy the Vampire Slayer||Willow Rosenberg||Main role
|1999-2000||100 Deeds for Eddie McDowd||Gigi||Voice
|1999||Hayley Wagner, Star||Jenna Jakes||TV movie|
|2000||Wild Thornberrys, TheThe Wild Thornberrys||Gerda||Voice
Episode: "Every Little Bit Alps"
|2001-03||Angel||Willow Rosenberg||3 episodes|
|2002-03||Rugrats||Cynthia P.I. / Young Starlet||Voice
|2004||That '70s Show||Suzy Simpson||2 episodes|
|2004||King of the Hill||Stacey Gibson||Voice
Episode: "Talking Shop"
|2004||In the Game||Role unknown||Pilot|
|2005-06||Veronica Mars||Trina Echolls||3 episodes:
"My Mother, the Fiend"
|2005-14||How I Met Your Mother||Lily Aldrin||Main role
|2009||Gordon Ramsay: Cookalong Live||Herself||Guest Star
Episode: "Gordon Ramsay: Cookalong Live"
|2009||Goode Family, TheThe Goode Family||Michelle||Voice
Episode: "Graffiti in Greenville"
|2011||Simpsons, TheThe Simpsons||Melody||Voice
Episode: "Flaming Moe"
Episode: "Big Trouble in Little Clerks 2"
|2011, 2013||American Dad!||Chelsea / Peasant's Daughter||Voice
|2013, 2016||Hollywood Game Night||Herself||Episode: "The One with the Friends"
Episode: "Hannigan, Hale & Hunt... Oh My!"
|2014||Sofia the First||Winter||Voice
Episode: "Winter's Gift"
|2014||The McCarthys||Pam||Episode: "Red Sox Swap"|
|2016||Penn & Teller: Fool Us||Herself||Host|
|1989||Young Artist Award||Best Young Actress in a Motion Picture: Comedy or Fantasy||My Stepmother Is an Alien||Nominated|
|1990||Best Young Actress Starring in a Television Series||Free Spirit||Nominated|
|2000||Young Hollywood Awards||Best Ensemble Cast||American Pie||Won|
|Teen Choice Awards||Choice TV Sidekick||Buffy the Vampire Slayer||Nominated|
|2001||Saturn Awards||Best Supporting Actress on Television||Nominated|
|2001||Teen Choice Awards||Choice TV Sidekick||Nominated|
|2002||Saturn Awards||Best Supporting Actress on Television||Won|
|2002||Satellite Awards||Best Supporting Actress - Television Series||Nominated|
|2002||Teen Choice Awards||Choice TV Sidekick||Won|
|2003||Saturn Awards||Best Supporting Actress on Television||Nominated|
|2003||Teen Choice Awards||Choice TV Sidekick||Nominated|
|2004||Choice Movie Actress - Comedy||American Wedding||Nominated|
|2004||Choice Movie Liplock||Nominated|
|2008||Choice TV Show: Comedy||How I Met Your Mother||Nominated|
|2009||People's Choice Awards||Favorite TV Comedy Actress||Won|
|2010||Favorite TV Comedy Actress||Nominated|
|2012||Favorite TV Comedy||Won|
|2012||Teen Choice Awards||Choice Movie Actress: Romantic Comedy||American Reunion||Nominated|
Alyson Hannigan supports the following charitable causes: Pediatric AIDS, AIDS, Rape/Sexual Abuse.