Known for bringing a quirky and vibrant personality to many of her characters, Alyson Lee Hannigan first garnered attention for portraying wallflower Willow Rosenberg on the popular WB series, “Buffy the Vampire Slayer.” A former child actor/model, this natural redhead one-upped her TV fame after being cast in the late 1990s teen romp, “American Pie” (1999) as the nice-but-naughty band geek, Michelle.Born March 24, 1974 in Washington D.C. to Albert Hannigan and Emilie Posner, Hannigan grew up in Atlanta, GA with her real estate agent mother after her parents’ divorced in 1972....