Alyson Hannigan 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
Buffy the Vampire Slayer Genre TV Actress. The series won the Drama Category for Television's Most Memorable Moment at the 60th Primetime Emmy Awards for "The Gift" beating "The X-Files", "Grey's Anatomy", "Brian's Song" and "Dallas", although the sequence for this award was not aired. It was nominated for Emmy and Golden Globe awards, winning a total of three Emmys. However, snubs in lead Emmy categories resulted in outrage among TV critics and the decision by the academy to hold a tribute event in honor of the series after it had gone off the air in 2003. Buffy the Vampire Slayer Buffy the Vampire