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Still of Alyson Hannigan in How I Met Your Mother Still of Alyson Hannigan and Jason Segel in How I Met Your Mother Still of Alyson Hannigan in How I Met Your Mother Still of Neil Patrick Harris, Alyson Hannigan and Jason Segel in How I Met Your Mother Still of Neil Patrick Harris and Alyson Hannigan in How I Met Your Mother Still of Neil Patrick Harris and Alyson Hannigan in How I Met Your Mother Still of Neil Patrick Harris and Alyson Hannigan in How I Met Your Mother Still of Neil Patrick Harris, Alyson Hannigan, Jason Segel and Cobie Smulders in How I Met Your Mother Still of Alyson Hannigan and Jason Segel in How I Met Your Mother Still of Alyson Hannigan and Jason Segel in How I Met Your Mother Still of Alyson Hannigan and Jason Segel in How I Met Your Mother Still of Alyson Hannigan and Jason Segel in How I Met Your Mother

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View the latest pictures, photos and images of Alyson Hannigan - Alyson, born in Washington DC, began her acting career in Atlanta at the young age of 4 in commercials sponsoring such companies as McDonald's, Six Flags, and Oreos. She is a seasoned television actress veteran, guest starring in Picket Fences, Roseanne, Touched by an Angel and the The Torkelsons before starring in her most notorious role yet in Buffy the Vampire Slayer as "Willow Rosenberg"... See full bio