ALYSON HANNIGAN (Michelle) plays the surprisingly adventurous flute-player who wound up as Jim's prom date in American Pie. Being labeled a "band geek" never kept Michelle from getting down. This girl can carry a tune and party, as she showed Jim at the prom last year. Now, one year later, she's still raving about band camp. But this time she's a counselor — with plenty of good counsel for Jim. Hannigan is best-known from her role on the cult television series Buffy the Vampire Slayer. Just completing the 100th episode and beginning season six, Hannigan portrays Willow Rosenberg, Buffy's best friend and confidant. Her character has developed throughout the seasons, from high school computer geek to young college student exploring her sexuality, as well as her witchcraft.
Born in Washington, D.C., Hannigan moved to Atlanta at age two. She began her career there appearing in national commercials. At age 11, she moved to Los Angeles. Her breakthrough came two years later when she was cast as Dan Ackroyd's misunderstood daughter in My Stepmother Is an Alien.