With the unconventional good looks and quirky persona that shout Leading Character Actress, Alyson Hannigan made a name for herself on the WB series Buffy the Vampire Slayer. As Buffy's confidant Willow Rosenberg, the actress endeared herself to a legion of fans and then won over film audiences everywhere with her scene-stealing turn as geeky flutist Michelle in the 1999 summer smash American Pie.
Born March 24, 1974, in Washington, D.C., Hannigan became a TV commercial veteran following her family's move to Atlanta. From the age of four, Hannigan appeared in a steady stream of commercials, including ones for Oreo and McDonald's. At the age of 11, she moved to Los Angeles to pursue a career in film and television. She made her big-screen debut in the 1988 film My Stepmother Is an Alien, as Dan Aykroyd's daughter. The following year, she won a regular spot on the short-lived sitcom Free Spirit and acted in a variety of television miniseries and sitcoms (including Roseanne and Picket Fences) until 1997, when she won the part of Willow on Buffy.