Alyson Lee Hannigan (born March 24, 1974) is an American actress. She is best known for her roles as Willow Rosenberg in the television series Buffy the Vampire Slayer (1997–2003), Lily Aldrin on the CBS sitcom How I Met Your Mother (2005–2014) and Michelle Flaherty in the American Pie film series (1999–present). Hannigan was born in Washington, D.C., the only child of Emilie (Posner) Haas, a real estate agent, and Al Hannigan, a truck driver. Her father is of Irish descent and her mother is Jewish. Her parents divorced when she was two and she was raised mostly by her mother in Atlanta, Georgia. Hannigan married fellow Buffy the Vampire Slayer actor 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 March 24, 2009, and Keeva Jane Denisof, born May 23, 2012. Hannigan and her husband are godparents to Joss Whedon's son, Arden. Description above from the Wikipedia article Alyson Hannigan, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Series | Buffy the Animated Series | Willow Rosenberg | 2025 |
Movie | Office Race | Pat | 2023-09-04 |
Movie | Flora & Ulysses | Phyllis | 2021-02-19 |
Series | Adorableness | Self | 2021-07-19 |
Movie | Kim Possible | Dr. Ann Possible | 2019-02-15 |
Movie | Abducted: The Mary Stauffer Story | Mary Stauffer | 2019-10-05 |
Movie | You Might Be the Killer | Chuck | 2019-05-21 |
Series | Fancy Nancy | Claire Clancy (voice) | 2018-07-13 |
Series | Fancy Nancy | Claire Clancy (voice) | 2018-07-13 |
Movie | Do You Take This Man | Rachael | 2017-07-07 |
Series | The Gong Show | Herself - Judge | 2017-06-22 |
Series | Star Plates | 2016-09-27 | |
Movie | American Reunion | Michelle Flaherty-Levenstein | 2012-04-04 |
Series | Penn & Teller: Fool Us | Herself - Host | 2011-01-07 |
Movie | Love, Wedding, Marriage | Courtney | 2011-06-03 |
Movie | More Business of Being Born | Self [Part 2,3] | 2011-11-08 |
Series | The Goode Family | Unknown | 2009-05-27 |
Series | The Bonnie Hunt Show | Unknown | 2008-09-08 |
Movie | Date Movie | Julia Jones | 2006-02-17 |
Movie | Farce of the Penguins | Hottie Penguin (voice) | 2006-12-01 |
Series | The Megan Mullally Show | Unknown | 2006-09-18 |
Series | I Love the '70s: Volume 2 | Unknown | 2006-07-10 |
Series | The Reichen Show | Unknown | 2005-11-11 |
Series | How I Met Your Mother | Lily Aldrin | 2005-09-19 |
Series | Veronica Mars | Unknown | 2004-09-22 |
Movie | American Pie: Revealed | Self | 2004-01-02 |
Series | The Ellen DeGeneres Show | Unknown | 2003-09-08 |
Movie | American Wedding | Michelle Flaherty | 2003-08-01 |
Movie | Playboy Mansion Parties Uncensored | Self | 2001-05-31 |
Movie | Beyond the City Limits | Lexi | 2001-12-17 |
Movie | American Pie 2 | Michelle Flaherty | 2001-08-10 |
Movie | Boys and Girls | Betty | 2000-06-16 |
Series | The Late Late Show with Craig Kilborn | Unknown | 1999-03-30 |
Movie | American Pie | Michelle Flaherty | 1999-07-09 |
Series | 100 Deeds for Eddie McDowd | Unknown | 1999-10-16 |
Series | Angel | Willow Rosenberg | 1999-10-05 |
Movie | Dead Man on Campus | Lucy | 1998-08-21 |
Series | That '70s Show | Unknown | 1998-08-23 |
Series | The Wild Thornberrys | Unknown | 1998-09-01 |
Series | Buffy the Vampire Slayer | Willow Rosenberg | 1997-03-10 |
Movie | A Case for Life | Iris | 1996-02-18 |
Series | The Daily Show | Unknown | 1996-07-22 |
Movie | For My Daughter's Honor | Kelly | 1996-11-20 |
Series | MADtv | Unknown | 1995-10-14 |
Movie | The Stranger Beside Me | Dana | 1995-09-17 |
Series | Touched by an Angel | Unknown | 1994-09-21 |
Series | Late Night with Conan O'Brien | Unknown | 1993-09-13 |
Series | The Tonight Show with Jay Leno | Unknown | 1992-05-25 |
Series | The Torkelsons | Unknown | 1991-09-21 |
Movie | Switched at Birth | Gina Twigg, Age 13-16 | 1991-04-28 |
Series | The Simpsons | Unknown | 1989-12-17 |
Series | Free Spirit | Jessie Harper | 1989-09-22 |
Series | Roseanne | Unknown | 1988-10-18 |
Movie | My Stepmother Is an Alien | Jessie Mills | 1988-12-09 |
Movie | Impure Thoughts | Patty Stubbs (as Allison Hannigan) | 1986-11-25 |