Gabrielle Christian (born Gabrielle Christine Horchler; July 30, 1984) is an American actress and singer best known for her portrayal of Spencer Carlin in The N original series South of Nowhere and for her portrayal of Colby Robson in the web series Girltrash! and its Musical Prequel Film Girltrash:All Night Long. In addition, she has also guest starred on Drake & Josh, Windfall, Without a Trace, and What Should You Do?.