After receiving her B.A. in Theatre (2001) and her M.F.A. in Film and Television (2005), Karen went to work as an Executive Producer's Assistant at ABC Television and then advancing to Development Assistant. In 2008, Karen switched to Showtime Networks as a Writers' Assistant on Dexter, becoming a writer for the show in 2011. In January 2014, she signed on as a writer for Covert Affairs, where she is also a co-producer.