
Highest rated as cast or director
Buffy the Vampire Slayer
1997 · 7 Seasons
How I Met Your Mother
2005 · 9 Seasons
Solo Mio
2026
American Pie
1999
Flora & Ulysses
2021
Fancy Nancy
2018 · 3 Seasons
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 Claire Clancy in the Disney Junior animated series Fancy Nancy (2018–present).
Acted in 49
2020s
- 2026
- 2023
- 2021
- 2020
2010s
- 2019
Abducted: The Mary Stauffer Story
Mary Stauffer
- 2018
- 2017
- 2016
Star Plates
TV
- 2013
- 2012
- 2011
2000s
- 2009
- 2008
Buffy the Animated Series
Willow Rosenberg · 1 episode
- 2006
Farce of the Penguins
Hottie Penguin (voice)
- 2005
- 2004
- 2003
- 2001
Beyond the City Limits
Lexi
- 2000
1990s
- 1999
100 Deeds for Eddie McDowd
TV
Hayley Wagner, Star
Jenna Jakes
- 1998
Dead Man on Campus
Lucy
- 1997
- 1996
- 1995
The Stranger Beside Me
Dana
- 1994
- 1992
- 1991
1980s
- 1989
Free Spirit
Jessie Harper · 14 episodes
- 1988
- 1986
Impure Thoughts
Patty Stubbs
Produced 1
2010s
- 2011
Appearances28
2020s
- 2025
- 2021
Adorableness
Self · 10 episodes
- 2020
Girl Scout Cookie Championship
Self - Host · 4 episodes
2010s
- 2019
- 2017
- 2016
- 2013
- 2011
2000s
- 2009
- 2008
- 2006
I Love the '70s: Volume 2
Self · 2 episodes
- 2005
- 2004
American Pie: Revealed
Self
- 2003
- 2001
Buffy's Back: The E! Original Special
Self
1990s
- 1999
Teen Choice Awards
Self · 1 episode
- 1996
- 1993
- 1992
1980s
- 1981
No release date
American Pie: Beneath the Crust Vol. 2
Self
Thanked in the credits1
2000s
- 2004
American Pie: Revealed
Thanks





