Alyson Hannigan
Acting
Alyson Lee Hannigan (born March 24, 1974) is an American actress and television presenter. She is best known for her roles as Willow Rosenberg in the television series Buffy the Vampire Slayer (1997–2003), as Lily Aldrin in the sitcom How I Met Your Mother (2005–2014) for which she won a People's Choice Award in 2009, and as Michelle Flaherty in the American Pie film series (1999–2012). Since 2016, Hannigan has hosted the television show Penn & Teller: Fool Us. She also provides the voice of Claire Clancy in the Disney Junior animated series Fancy Nancy (2018–present).
Known for
Acting82
movieSolo Mio
2026
Meghan
movieFlora & Ulysses
2021
Phyllis
tvOutrageous Pumpkins
2020
Self - Host
tvGirl Scout Cookie Championship
2020
Self - Host
tvOutmatched
2020
Beth
movieAbducted: The Mary Stauffer Story
2019
Mary Stauffer
movieKim Possible
2019
Dr. Ann Possible
tvFancy Nancy
2018
Claire Clancy (voice)
tvThe Gong Show
2017
Self - Judge
tvSofia the First
2013
(voice)
movieAmerican Reunion
2012
Michelle Levenstein
movieMore Business of Being Born
2011
Self [Part 2,3]
movieLove, Wedding, Marriage
2011
Courtney
tvPenn & Teller: Fool Us
2011
Self - Host
tvWatch What Happens Live with Andy Cohen
2009
Self - Guest
tvBuffy the Animated Series
2008
Willow Rosenberg
movieFarce of the Penguins
2006
Hottie Penguin (voice)
tvThe Megan Mullally Show
2006
Self - Guest
movieDate Movie
2006
Julia Jones
tvHow I Met Your Mother
2005
Lily Aldrin
tvDancing with the Stars
2005
Self - Contestant / Self - Audience Member / Self - Rehearsal Visitor
tvRobot Chicken
2005
Steelheart (voice)
tvAmerican Dad!
2005
Lexie (voice) / Ugly Stepsister #2 (voice) / Chelsea (voice)
tvVeronica Mars
2004
Trina Echolls
movieAmerican Wedding
2003
Michelle Flaherty
Pepsi Smash
2003
Self - Host
tvJimmy Kimmel Live!
2003
Self / Self - Guest
movieAmerican Pie 2
2001
Michelle Flaherty
tvAngel
1999
Willow Rosenberg
movieHayley Wagner, Star
1999
Jenna Jakes
movieAmerican Pie
1999
Michelle Flaherty
tvThe Late Late Show with Craig Kilborn
1999
Self - Guest
tvThe Wild Thornberrys
1998
Gerda (voice)
tvThat '70s Show
1998
Suzy Simpson
tvBuffy the Vampire Slayer
1997
Willow Rosenberg
tvKing of the Hill
1997
Stacey Gibson (voice)
tvThe Daily Show
1996
Self - Guest
tvTouched by an Angel
1994
Cassie Peters
tvLate Night with Conan O'Brien
1993
Self - Guest
tvLate Show with David Letterman
1993
Self - Guest / Self - Top Ten Presenter
tvPicket Fences
1992
Peggy Patterson
tvMTV Movie & TV Awards
1992
Self - Presenter
tvThe Torkelsons
1991
Samantha
tvRugrats
1991
Cynthia P.I. (voice)
tvThe Simpsons
1989
Melody Juniper (voice)
tvFree Spirit
1989
Jessie Harper
movieMy Stepmother Is an Alien
1988
Jessie Mills
movieImpure Thoughts
1986
Patty Stubbs
movieHow I Met The Robin
Lily Aldrin
Crew1
Production1
tvPenn & Teller: Fool Us
2011
Producer