Eva Gaëlle Green (born July 6, 1980) is a French-American actress and model. She started her career in theatre before making her film debut in 2003 in Bernardo Bertolucci's controversial “The Dreamers.” She achieved international recognition when she appeared in Ridley Scott's “Kingdom of Heaven” (2005) and portrayed Vesper Lynd in the James Bond film “Casino Royale” (2006). That same year, Green was awarded the BAFTA Rising Star Award.
Sapphire & Steel follows the two titular detectives, who are not exactly human, assigned by an unknown authority to correct anomalies that have allowed the mysterious and malevolent forces of time itself to break into the present, material world.