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 (1999–2012).
Early life
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 ancestry and her mother is Jewish. Her parents divorced when she was two and she was raised mostly by her mother in Atlanta, Georgia. She attended California State University, Northridge, and was a member of Alpha Chi Omega sorority.
Career
1978–96
At age four, Hannigan began appearing in commercials. She moved to Hollywood at age 11. Living with her mother
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