In 2009, Cohen portrayed Tiffany in the first episode of the FX comedy series The League. In 2010, Cohen played the role of Penelope the Stewardess in a season six episode of It's Always Sunny in Philadelphia. In 2011, Cohen appeared in episode four of the MTV horror-comedy series Death Valley, as a porn star named Lexi. Cohen also appeared as the Waitress in a season two episode of Nick Swardson's Pretend Time on Comedy Central, in the "Handyman 3000" Sketch. In January 2012, Cohen appeared in one episode of the NBC comedy Whitney, opposite Whitney Cummings. Cohen portrayed Molly in a season two episode of the CBS sitcom 2 Broke Girls that aired on December 3, 2012, alongside Abby Elliott. On May 8, 2013, and again on July 17, 2013, Cohen appeared in comedy sketches for Conan on TBS.