Alyson Hannigan

Alyson Hannigan

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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also starring Alyson Hannigan
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American Pie

As Michelle Flaherty

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Dodie & Cheryl Get Hitched

As Cheryl Crum

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Date Movie

As Julia Jones

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American Pie 2

As Michelle Flaherty

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American Wedding

As Michelle Flaherty

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My Stepmother Is an Alien

As Jessie Mills

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Beyond the City Limits

As Lexi

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Dead Man on Campus

As Lucy

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American Reunion

As Michelle Flaherty-Levenstein

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Love, Wedding, Marriage

As Courtney

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For My Daughter's Honor

As Kelly

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The Stranger Beside Me

As Dana

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Office Race

As Pat

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Impure Thoughts

As Patty Stubbs (as Allison Hannigan)

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Switched at Birth

As Gina Twigg, Age 13–16

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Hayley Wagner, Star

As Jenna Jakes

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Do You Take This Man

As Rachael

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More Business of Being Born

As Self [Part 2,3]

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Boys and Girls

As Betty

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A Case for Life

As Iris

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Farce of the Penguins

As Hottie Penguin (voice)

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Playboy Mansion Parties Uncensored

As Self

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Kim Possible

As Dr. Ann Possible

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You Might Be the Killer

As Chuck

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Flora & Ulysses

As Phyllis Buckman

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American Pie: Revealed

As Self

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Abducted: The Mary Stauffer Story

As Mary Stauffer

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Solo Mio

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That '70s Show

As Suzy Simpson

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Buffy the Vampire Slayer

As Willow Rosenberg

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The Simpsons

As Melody Juniper (voice)

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The Ellen DeGeneres Show

As Self

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Veronica Mars

As Trina Echolls

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How I Met Your Mother

As Lily Aldrin

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The Daily Show

As Self

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Touched by an Angel

As Cassie Peters

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The Torkelsons

As Samantha

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The Wild Thornberrys

As Gerda (voice)

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Angel

As Willow Rosenberg

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Roseanne

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The Tonight Show with Jay Leno

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Buffy the Animated Series

As Willow Rosenberg

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Late Night with Conan O'Brien

As Self - Guest

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Free Spirit

As Jessie Harper

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100 Deeds for Eddie McDowd

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The Goode Family

actor

I Love the '70s: Volume 2

As Self

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The Late Late Show with Craig Kilborn

As Self - Guest

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Doogie Kamealoha, M.D.

As Dawn

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Adorableness

As Self

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The Bonnie Hunt Show

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American Dad!

As Lexie (voice)

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Star Plates

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Penn & Teller: Fool Us

As Self - Host

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MTV Movie & TV Awards

As Self - Presenter

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Dancing with the Stars

As Self - Contestant

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Rugrats

As Cynthia P.I. (voice)

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The Kelly Clarkson Show

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Fancy Nancy

As Claire Clancy (voice)

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Fancy Nancy

As Claire Clancy (voice)

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The Reichen Show

As Self

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Teen Choice Awards

As Self - Presenter

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The Gong Show

As Self - Judge

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Sofia the First

As (voice)

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Entertainment Tonight

As Self

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The $100,000 Pyramid

As Self

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King of the Hill

As Stacey Gibson (voice)

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Girl Scout Cookie Championship

As Self - Host

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Watch What Happens Live with Andy Cohen

As Self - Guest

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Hollywood Game Night

As Self

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Outmatched

As Beth

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Outrageous Pumpkins

As Self - Host

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Fancy Nancy: Fancy It Yourself

As Nancy

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Beat Bobby Flay

As Self

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The Megan Mullally Show

As Self - Guest