Guest Stars Billie Piper as Rose Tyler Lesley Sharp as Sky Silvestry Colin Morgan as Jethro Cane Daniel Ryan as Biff Cane Duane Henry as Mechanic Claude Lindsey Coulson as Val Cane Rakie Ayola as Hostess David Troughton as Professor Winfold Hobbes Tony Bluto as Driver Joe Ayesha Antoine as Dee Dee Blasco