Today, Hannigan hones her comedic timing on the CBS series, "How I Met Your Mother." She's also reprising her role as the lovable flute-playing pervert of the "American Pie" franchise in the upcoming sequel, "American Reunion." As any "Buffy" fan knows, in 2003 Hannigan married Alexis Denisof, who played the stuffy Wesley Wyndam-Pryce on the show. The couple lives in Santa Monica, Calif., with their daughter, Satyana Marie Denisof, who was born on Hannigan's birthday, March 24, in 2009. Hannigan announced on Dec. 16, 2011, that she was expecting her second child.