Alexis Merizalde Knapp (born July 31, 1989) is an American actress.

In 2012, Knapp appeared in her first major roles, playing Alexis in Project X, and as Stacie Conrad in the hit film Pitch Perfect, a sex-crazed Barden Bella.

Knapp appeared in the pilot of ABC's short-lived series Super Fun Night, written by and starring her Pitch Perfect co-star Rebel Wilson.

[5][6] She starred in the Tom Vaughan directed film So Undercover, as Taylor Jaffe.

Knapp had a starring role in the first season of the TBS comedy, Ground Floor, portraying Tori, a party girl, who catches up on her sleep at work the next morning,[7] but her character was dropped before the second season.