Jason Biggs, Alyson Hannigan, and Seann William Scott in American Wedding (2003)

Jason Biggs, Alyson Hannigan, and Eugene Levy in American Wedding (2003)

Jason Biggs and Alyson Hannigan in American Wedding (2003)

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

Alyson Hannigan in American Wedding (2003)

(L to R) The bridal party: SEANN WILLIAM SCOTT as Steve Stifler, JANUARY JONES as Cadence, JASON BIGGS as Jim (the groom), ALYSON HANNIGAN as Michelle (the bride), EDDIE KAYE THOMAS as Finch and THOMAS IAN NICHOLAS as Kevin in American Wedding.  

Alyson Hannigan and Adam Herz in American Wedding (2003)

Alyson Hannigan, January Jones, and Eddie Kaye Thomas in American Wedding (2003)

Jason Biggs and Alyson Hannigan in American Pie (1999)

Alyson Hannigan in Buffy the Vampire Slayer (1997)

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

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)