Alyson Hannigan
Acting
81
Acting Credits
Biography
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 Cla...
Known For
Filmography
Solo Mio
2026
as Meghan
Office Race
2023
as Pat
Flora & Ulysses
2021
as Phyllis
Doogie Kamealoha, M.D.
2021
as Dawn
Adorableness
2021
as Self
Girl Scout Cookie Championship
2020
as Self - Host
Outmatched
2020
as Beth
Outrageous Pumpkins
2020
as Self - Host
Kim Possible
2019
as Dr. Ann Possible
You Might Be the Killer
2019
as Chuck
Abducted: The Mary Stauffer Story
2019
as Mary Stauffer
The Kelly Clarkson Show
2019
as Self
Fancy Nancy: Fancy It Yourself
2019
as Nancy
Fancy Nancy
2018
as Claire Clancy (voice)
Do You Take This Man
2017
as Rachael
The Gong Show
2017
as Self - Judge
Star Plates
2016
The $100,000 Pyramid
2016
as Self
Sofia the First
2013
as (voice)
Hollywood Game Night
2013
as Self
Beat Bobby Flay
2013
as Self
American Reunion
2012
as Michelle Levenstein
Love, Wedding, Marriage
2011
as Courtney
More Business of Being Born
2011
as Self [Part 2,3]
Penn & Teller: Fool Us
2011
as Self - Host
The Goode Family
2009
Watch What Happens Live with Andy Cohen
2009
as Self - Guest
Buffy the Animated Series
2008
as Willow Rosenberg
The Bonnie Hunt Show
2008
as Self
Date Movie
2006
as Julia Jones
Farce of the Penguins
2006
as Hottie Penguin (voz)
I Love the '70s: Volume 2
2006
as Self
The Megan Mullally Show
2006
as Self - Guest
How I Met Your Mother
2005
as Lily Aldrin
American Dad!
2005
as Lexie (voice)
American Dad!
2005
as Ugly Stepsister #2 (voice)
Dancing with the Stars
2005
as Self - Contestant
The Reichen Show
2005
as Self
American Dad!
2005
as Chelsea (voice)
Dancing with the Stars
2005
as Self - Audience Member
Dancing with the Stars
2005
as Self - Rehearsal Visitor
Robot Chicken
2005
as Steelheart (voice)
American Pie: Revealed
2004
as Self
Buffy the Vampire Slayer: The Animated Series
2004
as Willow Rosenberg
Veronica Mars
2004
as Trina Echolls
American Wedding
2003
as Michelle Flaherty
The Ellen DeGeneres Show
2003
as Self
Pepsi Smash
2003
as Self - Host
Jimmy Kimmel Live!
2003
as Self
American Pie 2
2001
as Michelle Flaherty
Beyond the City Limits
2001
as Lexi
Playboy Mansion Parties Uncensored
2001
as Self
Boys and Girls
2000
as Betty
American Pie
1999
as Michelle Flaherty
Hayley Wagner, Star
1999
as Jenna Jakes
Angel
1999
as Willow Rosenberg
100 Deeds for Eddie McDowd
1999
The Late Late Show with Craig Kilborn
1999
as Self - Guest
Teen Choice Awards
1999
as Self
Dead Man on Campus
1998
as Lucy
That '70s Show
1998
as Suzy Simpson
The Wild Thornberrys
1998
as Gerda (voice)
Buffy the Vampire Slayer
1997
as Willow Rosenberg
King of the Hill
1997
as Stacey Gibson (voice)
For My Daughter's Honor
1996
as Kelly
A Case for Life
1996
as Iris
The Daily Show
1996
as Self
The Stranger Beside Me
1995
as Dana
Touched by an Angel
1994
as Cassie Peters
Late Night with Conan O'Brien
1993
as Self - Guest
The Tonight Show with Jay Leno
1992
MTV Movie & TV Awards
1992
as Self - Presenter
Picket Fences
1992
as Peggy Patterson
The Torkelsons
1991
as Samantha
Rugrats
1991
as Cynthia P.I. (voice)
The Simpsons
1989
as Melody Juniper (voice)
Free Spirit
1989
as Jessie Harper
My Stepmother Is an Alien
1988
as Jessie Mills
Roseanne
1988
Impure Thoughts
1986
as Patty Stubbs
Entertainment Tonight
1981
as Self