Question: What character does Alexis Knapp play in the series of movies about Barden University's singing group, Pitch Perfect?

Context paragraphs:
Anna Camp: Anna Ragsdale Camp (born September 27, 1982) is an American actress and singer.  She is known for her role as Sarah Newlin in "True Blood", and her recurring roles in "Mad Men", "The Good Wife", and "The Mindy Project".  She is also known for her role as Aubrey Posen in "Pitch Perfect" (2012), "Pitch Perfect 2" (2015), and the upcoming "Pitch Perfect 3" (2017).  She made her Broadway debut in the 2008 production of "A Country House" and played Jill Mason in the 2008 Broadway revival of "Equus".  In 2012, she was nominated for a Drama Desk Award for her performance in the Off-Broadway play "All New People".  Camp played Jane Hollander, a researcher for the fictitious "News of the Week" magazine in the Amazon series "Good Girls Revolt."  She also had a role in the 2011 film "The Help".

Pitch Perfect: Pitch Perfect is a 2012 American musical comedy film written by Kay Cannon and directed by Jason Moore.  It features an ensemble cast, including Anna Kendrick, Skylar Astin, Rebel Wilson, Anna Camp, Brittany Snow, Ester Dean, Alexis Knapp, Hana Mae Lee, Adam DeVine, Ben Platt, John Michael Higgins, and Elizabeth Banks.  The plot follows Barden University's all-girl a cappella group, The Barden Bellas, as they compete against another a cappella group from their college to win Nationals.  The film is loosely adapted from Mickey Rapkin's non-fiction book, titled "Pitch Perfect: The Quest for Collegiate a Cappella Glory".  Filming concluded in December 2011, in Baton Rouge, Louisiana.

Kelley Jakle: Kelley Alice Jakle (born June 27, 1989) is an American actress and singer-songwriter.  She is best known for her role as Jessica in "Pitch Perfect" (2012) and its sequel "Pitch Perfect 2" (2015).  She is also known for her appearances on the first and second seasons of "The Sing-Off" in 2009 and 2010.

Pitch Perfect (soundtrack): Pitch Perfect: Original Motion Picture Soundtrack is the official music for the 2012 film "Pitch Perfect".  The soundtrack was released digitally on September 25, 2012, and physically on October 2, 2012.  Three songs from the album charted on the "Billboard" Hot 100: "Cups" by Anna Kendrick, which peaked at number 6; "Bellas Finals: Price Tag/Don't You (Forget About Me)/Give Me Everything/Just the Way You Are/Party in the U.S.A./Turn the Beat Around" by The Barden Bellas, which peaked at number 85; and "Riff Off: Mickey/Like a Virgin/Hit Me with Your Best Shot/S&M/Let's Talk About Sex/I'll Make Love to You/Feels Like the First Time/No Diggity" by The Barden Bellas, The Treblemakers, and the BU Harmonics, which has peaked at number 86.

Pitch Perfect (film series): Pitch Perfect is a series of musical comedy films created by Kay Cannon, loosely based on the non-fiction book "Pitch Perfect: The Quest for Collegiate a Cappella Glory" by Mickey Rapkin.  Jason Moore directed the first film, and Elizabeth Banks directed the second, with the upcoming third installment set to be released on December 22, 2017.  Paul Brooks, Max Handelman, and Banks produced the films.  It features an ensemble cast, including Anna Kendrick, Rebel Wilson, Anna Camp, Brittany Snow, Skylar Astin, Adam DeVine, Ben Platt, Alexis Knapp, Hana Mae Lee, Ester Dean, Hailee Steinfeld, Chrissie Fit, Katey Sagal, John Michael Higgins, and Banks.  The series is distributed by Universal Pictures.

Elizabeth Banks: Elizabeth Irene Banks (née Mitchell; February 10, 1974) is an American actress, director, and producer.  Banks made her film debut in the low-budget independent film "Surrender Dorothy" (1998), and is known for her roles in such films as "Wet Hot American Summer" (2001), Sam Raimi's "Spider-Man" trilogy (2002–2007), "Seabiscuit" (2003), "The 40-Year-Old Virgin" (2005), "Zack and Miri Make a Porno" (2008), "Role Models" (2008), "The Next Three Days" (2010), "Pitch Perfect" (2012), "The Lego Movie" (2014), and "The Hunger Games" film series (2012–2015).  In 2014, she portrayed Melinda Ledbetter, the girlfriend and later wife of the Beach Boys co-founder Brian Wilson, in the biographical drama "Love & Mercy" and made her directorial debut with "Pitch Perfect 2", whose $69M opening weekend gross set a record for a first-time director.

Pitch Perfect 2: Pitch Perfect 2 is a 2015 American musical comedy film directed and co-produced by Elizabeth Banks and written by Kay Cannon.  It is a sequel to the 2012 film "Pitch Perfect" and the second installment in the "Pitch Perfect" series.  The film centers on the fictional Barden University and The Bellas, an all-female a cappella singing group.  The film features an ensemble cast, including Anna Kendrick, Rebel Wilson, Hailee Steinfeld, Brittany Snow, Alexis Knapp, Hana Mae Lee, Ester Dean, Chrissie Fit, Kelley Jakle and Shelley Regner as The Bellas.  It was released on May 15, 2015 by Universal Pictures.

Shelley Regner: Shelley Anne Regner (born December 21, 1988) is an American actress and singer known for her role as Ashley in the musical films "Pitch Perfect" (2012) and its sequel "Pitch Perfect 2" (2015).  She will be returning for the third installment, "Pitch Perfect 3" (2017).

Alexis Knapp: Alexis Merizalde Knapp (born July 31, 1989) is an American actress and singer.  She is known for her role as Stacie Conrad in the musical films "Pitch Perfect" (2012) , "Pitch Perfect 2" (2015) and the upcoming "Pitch Perfect 3".  She is also known for her role of Alexis in the party film "Project X" (2012), and her role on the first season of the TBS comedy "Ground Floor".

Pitch Perfect 3: Pitch Perfect 3 is an upcoming American musical comedy film directed by Trish Sie and written by Kay Cannon.  A sequel to "Pitch Perfect 2" (2015) and the third and final installment in the "Pitch Perfect" trilogy, the film will star Anna Kendrick, Anna Camp, Rebel Wilson, Brittany Snow, Hailee Steinfeld, Alexis Knapp, Ester Dean, Hana Mae Lee, Chrissie Fit, Kelley Jakle and Shelley Regner, with Elizabeth Banks and John Michael Higgins.  The film is scheduled to be released on December 22, 2017.

Supporting paragraphs: Pitch Perfect Alexis Knapp
Answer: Stacie Conrad