Biography: Alyson Hannigan

Birth Name: Alyson Lee Hannigan

Birth Date: March 24, 1974

Birth Place: Washington, D.C.

Alyson Lee Hannigan (born March 24, 1974) is an American actress and television presenter. She is best known for her roles as Willow Rosenberg in the television series Buffy the Vampire Slayer (1997–2003), as Lily Aldrin in the sitcom How I Met Your Mother (2005–2014) for which she won a People'...