Dean's breakthrough performance was playing criminal 'Jack Lynn' in Law And Order (1978).
Film credits include: Up Pompeii (1971), Murder by Decree (1979), Sweet William (1980), The Fiendish Plot of Dr. Fu Manchu (1980), P'tang, Yang, Kipperbang (1982), and as a bouncer in The Great Rock 'n' Roll Swindle (1980).