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 & T...
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Date Movie
As Julia Jones
American Pie
As Michelle Flaherty
American Pie 2
As Michelle Flaherty
American Wedding
As Michelle Flaherty
My Stepmother Is an Alien
As Jessie Mills
Beyond the City Limits
As Lexi
Dead Man on Campus
As Lucy
American Reunion
As Michelle Flaherty-Levenstein
Love, Wedding, Marriage
As Courtney
For My Daughter's Honor
As Kelly
The Stranger Beside Me
As Dana
Impure Thoughts
As Patty Stubbs (as Allison Hannigan)
Switched at Birth
As Gina Twigg, Age 13–16
Boys and Girls
As Betty
A Case for Life
As Iris
Do You Take This Man
As Rachael
Farce of the Penguins
As Hottie Penguin (voice)
Playboy Mansion Parties Uncensored
As Self
Kim Possible
As Dr. Ann Possible
You Might Be the Killer
As Chuck
Flora & Ulysses
As Phyllis Buckman
American Pie: Revealed
As Self
Abducted: The Mary Stauffer Story
As Mary Stauffer
Dodie & Cheryl Get Hitched
As Cheryl Crum
Hayley Wagner, Star
As Jenna Jakes
More Business of Being Born
As Self [Part 2,3]
Office Race
As Pat
That '70s Show
As Suzy Simpson
The Ellen DeGeneres Show
As Self
Veronica Mars
As Trina Echolls
The Torkelsons
As Samantha
The Daily Show
As Self
Touched by an Angel
As Cassie Peters
The Tonight Show with Jay Leno
Roseanne
Buffy the Animated Series
As Willow Rosenberg
Late Night with Conan O'Brien
As Self - Guest
Free Spirit
As Jessie Harper
100 Deeds for Eddie McDowd
The Goode Family
I Love the '70s: Volume 2
As Self
How I Met Your Mother
As Lily Aldrin
The Simpsons
The Wild Thornberrys
As Gerda (voice)
Angel
As Willow Rosenberg
The Megan Mullally Show
As Self
The Late Late Show with Craig Kilborn
As Self - Guest
The Bonnie Hunt Show
Buffy the Vampire Slayer
As Willow Rosenberg
Penn & Teller: Fool Us
As Self - Host
Fancy Nancy
As Claire Clancy (voice)
The Reichen Show
As Self
The Gong Show
As Self - Judge
Sofia the First
As (voice)
The $100,000 Pyramid
As Self
American Dad!
As Chelsea (voice)
Girl Scout Cookie Championship
As Self - Host
Outmatched
As Beth
Hollywood Game Night
As Self
Outrageous Pumpkins
As Self - Host
Fancy Nancy: Fancy It Yourself
As Nancy
Adorableness
As Self
King of the Hill
As Stacey Gibson (voice)
Doogie Kamealoha, M.D.
As Dawn
Star Plates
MTV Movie & TV Awards
As Self / Presenter
Dancing with the Stars
As Self - Contestant
Rugrats
As Cynthia P.I. (voice)
The Kelly Clarkson Show
Fancy Nancy
As Claire Clancy (voice)
Teen Choice Awards
As Self - Presenter
Entertainment Tonight
As Self
Watch What Happens Live with Andy Cohen
As Self - Guest
