Lani Desmonet "Desi" Lydic (born June 30, 1981) is an American comedian and actress who is currently a correspondent on The Daily Show with Trevor Noah. She also stars as guidance counselor Valerie Marks on the MTV comedy-drama series Awkward. She got her start in the 2001 parody film Not Another Teen Movie. She also starred in the Spike mini-series Invasion Iowa alongside William Shatner, and the parody series The Real Wedding Crashers. She appeared as Shea Seger in the 2011 film We Bought a Zoo alongside Matt Damon and Scarlett Johansson, and in the 2013 film The Babymakers with Olivia Munn. Lydic also appeared as one half of a lesbian couple on an episode of the Disney Channel series Good Luck Charlie in 2014. She joined Trevor Noah's lineup of correspondents for The Daily Show on September 29, 2015.
Lydic was born in Louisville, Kentucky. As a child, she enrolled in the Young Actors Institute at the Youth Performing Arts School and starred in a Kroger commercial. She later moved to Los Angeles, California, and became an improvisational actor, performing at The Groundlings and Improv Olympic.