Yvette Nicole Brown (Born August 12, 1971) is an American actress and comedian. She had a recurring role on Drake & Josh as Helen, Josh's boss at the Premier Movie Theater. She plays the same role as Helen Dubois who left her job as a cinema manager to come and be the new Hollywood Arts High School principal in Victorious in the episode Helen Back Again. She starred in many television shows, and films throughout her career. She currently appears as Shirley Bennett on the NBC comedy series Community. She will play one of the Grey Sisters in Percy Jackson and the Sea of Monsters.She has also appeared in television commercials for Hamburger Helper, Big Lots, Pine-Sol, Comcast, Aquapod, Shout, Fiber One, Yoplait Yogurt, DiGiorno Pizza, Dairy Queen, and Time Warner.