Alyson Hannigan (born March 24, 1974) is an American actress known for her roles as Willow Rosenberg on the television series "Buffy the Vampire Slayer," Michelle Flaherty in the "American Pie" film series, and Lily Aldrin in the CBS sitcom "How I Met Your Mother." See pictures videos and articles about Alyson Hannigan here. She had seven siblings. Her father, Joseph, was a real estate mogul who ran a family business. Her mother had three older sisters, an older brother with a minor role in the movie "The Thing". Hannigan graduated in 1987. She lived with her older brother Fred, a real-estate investor while his older sister Helen was...
- Born: ( 1974-03-24) March 24, 1974 (age 46) Washington, D.C., U.S.
- Other names: Alyson Denisof
- Alma mater: California State University, Northridge
- Occupation: Actress, television presenter
- Years active: 1986–present
- Television: How I Met Your Mother, Buffy the Vampire Slayer, Penn & Teller: Fool Us, Fancy Nancy
- Spouse(s): Alexis Denisof (m. 2003)
- Children: 2
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