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
Undeveloped Buffy the Vampire Slayer spinoffs the way". Undeveloped Buffy the Vampire Slayer spinoffs The popular fictional Buffyverse established by TV series, "Buffy the Vampire Slayer" and "Angel" has led to attempts to develop more commercially viable programs set in the fictional 'Buffyverse'. However some of these projects remain undeveloped for various reasons: sometimes, vital cast members may be unavailable; alternatively, studios and networks which would provide capital for the spinoffs might remain unconvinced that such projects are financially viable. From 2007 onwards, many ideas for unproduced "Buffy" spin-offs found their way into canonical comic books. Ideas for "Faith" were utilised in Dark Horse Comics' "Buffy