Corinne Bohrer, Alyson Hannigan, and Edan Gross in Free Spirit (1989)

Alyson Hannigan, Edan Gross, and Paul Scherrer in Free Spirit (1989)

Corinne Bohrer and Alyson Hannigan in Free Spirit (1989)

Alyson Hannigan and Paul Scherrer in Free Spirit (1989)

Corinne Bohrer, Alyson Hannigan, Franc Luz, Edan Gross, and Paul Scherrer in Free Spirit (1989)

Alyson Hannigan and Amber Benson in Buffy the Vampire Slayer (1997)

Alyson Hannigan in Buffy the Vampire Slayer (1997)

Alyson Hannigan and Lindsay Fisher in Roseanne (1988)

Neil Patrick Harris, Alyson Hannigan, Jason Segel, Josh Radnor, and Cobie Smulders in Inside the Actors Studio (1994)

Alyson Hannigan, Suzie Plakson, and Jason Segel in How I Met Your Mother (2005)

Alyson Hannigan, Sam Anderson, Thomas Dekker, Lee Garlington, Anthony Rapp, Jonathan Bennett, Hutchi Hancock, and Alona Tal in Do You Take This Man (2016)

Alyson Hannigan, Sam Anderson, Mackenzie Astin, and Lee Garlington in Do You Take This Man (2016)

Alyson Hannigan in Do You Take This Man (2016)

Alyson Hannigan, Mackenzie Astin, and Lee Garlington in Do You Take This Man (2016)

Sarah Michelle Gellar, Seth Green, Charisma Carpenter, Alyson Hannigan, and Nicholas Brendon in Buffy the Vampire Slayer (1997)

Alyson Hannigan and Jason Segel in How I Met Your Mother (2005)

Alyson Hannigan and Matilda Lawler in Flora & Ulysses (2021)

Corinne Bohrer, Alyson Hannigan, Edan Gross, and Paul Scherrer in Free Spirit (1989)

Alyson Hannigan, Michael Constantine, Edan Gross, and Paul Scherrer in Free Spirit (1989)

Mena Suvari, Alyson Hannigan, and Tara Reid in American Pie (1999)

Shannon Elizabeth, Jason Biggs, Alyson Hannigan, Chris Klein, Thomas Ian Nicholas, Tara Reid, Seann William Scott, and Eddie Kaye Thomas in American Pie (1999)

Shannon Elizabeth, Mena Suvari, Jason Biggs, Alyson Hannigan, Chris Klein, Natasha Lyonne, Thomas Ian Nicholas, Tara Reid, Seann William Scott, and Eddie Kaye Thomas in American Pie 2 (2001)

Jason Biggs, Alyson Hannigan, Thomas Ian Nicholas, Seann William Scott, Eugene Levy, and Eddie Kaye Thomas in American Wedding (2003)

Sarah Michelle Gellar, Alyson Hannigan, and Nicholas Brendon in Buffy the Vampire Slayer (1997)

Sarah Michelle Gellar and Alyson Hannigan in Buffy the Vampire Slayer (1997)

Gwyneth Paltrow, Alyson Hannigan, Jack Black, Eddie Griffin, Sophie Monk, and Adam Campbell in Shallow Hal (2001)

Neil Patrick Harris, Alyson Hannigan, Jason Segel, Josh Radnor, and Cobie Smulders in How I Met Your Mother (2005)