Alyson Hannigan

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Previous Appearances

November 29, 2010: The Ellen DeGeneres Show
April 14, 2010: The Ellen DeGeneres Show
December 2, 2009: Martha
November 30, 2009: Today
October 23, 2009: The Ellen DeGeneres Show
September 29, 2009: Late Show with David Letterman

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Tags: Buffy the Vampire Slayer, How I Met Your Mother

Links

Alyson Hannigan's Wikipedia page
Alyson Hannigan's IMDb profile