Ruta Gedmintas (The Tudors) plays Frankie, an irreverent and provocative photographer who avoids commitment at all turns. Laura Fraser (Casanova) plays Cat - Frankie's former lover, who may not be as immune to Frankie's charms as she professes to be. Fiona Button (The Palace) plays Tess - Cat's best friend and flatmate who has an uncanny knack of attracting all the wrong sorts of women.