Matthew Rhys Evans, known professionally as Matthew Rhys, is a Welsh actor, best-known as Kevin Walker on the U.S. ABC family drama "Brothers & Sisters", and as Dylan Thomas in "The Edge of Love".
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.
