She is best known for her roles as Karen in The Gay and Wondrous Life of Caleb Gallo, Sabrina Oznowich in The Flight Attendant, Fran Frask in Lessons in Chemistry, and Gwen in English Teacher.
[1] In 2016, Koenig created the comedy web series, Stupid Idiots, which she wrote, directed, and stars in as Stephanie.
[2][3] In 2016, Koenig starred in the LGBT themed comedy web series The Gay and Wondrous Life of Caleb Gallo created by frequent collaborator Brian Jordan Alvarez, playing the character Karen.
[6] In September 2020, Koenig joined the cast of the CBS comedy, Wilde Things as Mary Wolfe, written and created by Max Mutchnick and David Kohan.
[10] In October 2021, Koenig announced that she wrote, directed, and stars in the satire film A Spy Movie, playing the role Bushilla Strasshola.