Born March 24, 1974, in Washington, D.C., Alyson Hannigan began her career almost from birth, becoming a TV commercial veteran following her family's move to Atlanta.

From the age of four, Alyson 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.

Alyson Hannigan continued to appear as a guest performer on such shows as "Roseanne" and "Almost Home" before taking time out to attend college. She found small screen success as the wallflower Willow Rosenberg on the hit series "Buffy the Vampire Slayer"

Hannigan found herself revisiting the sexually advanced but socially backward Michelle in 2001's high-profile sequel American Pie 2. Though critics were mixed on the franchise's sophomore offering, they praised Hannigan's ability to fully flesh out a character who essentially served as an elaborate punch line in the first film.

When she's not busy with work, which isn't too often these days, Alyson enjoys bike riding, kick-boxing, surfing the web, and playing with her cats & dogs.