Alyson Hannigan Alyson Hannigan Alyson Lee Hannigan (born March 24, 1974) is an American actress and television presenter. 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, D.C., the only child of Emilie (Posner) Haas, a real estate agent, and Alan Hannigan, a Teamsters trucker. Her father is of Irish ancestry and her mother is Jewish. At age four, Hannigan began appearing in commercials. She moved
Unaired Buffy the Vampire Slayer pilot she is "The Slayer". One vampire runs away, and Buffy is left to dispatch the blond vampire. The next morning, Giles is unimpressed by Buffy's sloppy fighting and the fact that she allowed others to find out her identity as the Slayer. Her new friends, Willow and Xander, defend her, but Buffy is unbothered. Whedon was interviewed by "IGN Film Force" in June 2003 and was asked about the unaired presentation: Unaired Buffy the Vampire Slayer pilot The non-broadcast pilot episode of "Buffy the Vampire Slayer" was produced by 20th Century Fox in 1996 to pitch a series to networks.