PersonAlyson Hannigan7 credits in the catalogue: acting, production.On the wikisBuffyverse WikiActingMy Stepmother Is an Alien1988Jessie MillsBuffy the Vampire Slayer1997Willow RosenbergAmerican Pie1999Michelle FlahertyHow I Met Your Mother2005Lily AldrinDate Movie2006Julia JonesPenn & Teller: Fool Us2011HostProductionPenn & Teller: Fool Us2011Producer