Alyson Hannigan 1989, her first regular role on a TV series came when she was cast in the short-lived ABC sitcom "Free Spirit". As a teenager, Hannigan babysat for the children of her future "How I Met Your Mother" costar, Bob Saget. In 1997, Hannigan was cast to play Willow Rosenberg, Buffy Summers' best friend, on the television series "Buffy the Vampire Slayer". The show became a success, and Hannigan gained recognition, subsequently appearing in several films aimed at teenaged audiences, including "American Pie" (1999), "Boys and Girls" (2000), "American Pie 2" (2001), and "American Wedding" (2003). She also had a guest
Buffy the Vampire Slayer in popular culture through the cemetery she realises she's...BUFFY!" Their idea is knocked back immediately. In the 2007 film "The Jane Austen Book Club", directed by Robin Swicord, also starring Marc Blucas who played Riley Finn on "Buffy the Vampire Slayer", Jocelyn finds herself surrounded by "Buffy" fans as to she is around a "Buffy convention" called the "Buffy Contingency." In the 2010 American vampire spoof "Vampires Suck", based in most part on "Twilight" film series, Buffy is portrayed by Krystal Mayo. She uses an outfit similar to "Buffy the Vampire Slayer Season Eight" #1 cover. In 2011 film remake "Fright Night" vampire