Kate Micucci (/m?'ku?t?i/; born March 31, 1980) is an American actress, comedian, singer-songwriter, and artist. She is one half ("Oates") of the musical comedy duo Garfunkel and Oates. Her first major television exposure was her role as Stephanie Gooch in Scrubs. Later, she portrayed Shelley in Raising Hope and Raj's girlfriend, Lucy, in The Big Bang Theory. She also provides the voice of Velma Dinkley in Be Cool, Scooby-Doo!, Sadie in Steven Universe, and Daisy in "Nature Cat".