Neil Patrick Harris and Alyson Hannigan at an event for The 57th Annual Primetime Emmy Awards (2005)

Alyson Hannigan at an event for The 57th Annual Primetime Emmy Awards (2005)

Alyson Hannigan at an event for American Wedding (2003)

Alyson Hannigan at an event for Hulk (2003)

Alyson Hannigan at an event for 2003 MTV Movie Awards (2003)

Alyson Hannigan and Alexis Denisof at an event for 2003 MTV Movie Awards (2003)

Jason Biggs and Alyson Hannigan at an event for 2003 MTV Movie Awards (2003)

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

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

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

Corinne Bohrer and Alyson Hannigan in Free Spirit (1989)

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

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

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

Corinne Bohrer, Alyson Hannigan, and Edan Gross 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)

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)