Karen Kilgariff is a comic, actress and writer best known for her work on the sketch comedy television program "Mr. Show" and the Glasgow-set situation comedy "The Book Group." She was the head writer for "The Ellen DeGeneres Show" and occasionally appears on screen in sketches and other segments. She was also part of a comic duo (with Mary Lynn Rajskub) called "Girls Guitar Club." Karen served as the head writer for "The Rosie Show" which aired on the Oprah Winfrey Network. She is also the co-host of the wildly popular podcast, "My Favorite Murder" alongside Georgia Hardstark.