In some of his early movies, particularly THE SYSTEM and THE PARTY'S OVER, British actor Oliver Reed gave his future roles away with imitations that are, in those cases, poking fun of either Americans or the typical cinematic Gangster...
The latter being used in the episode SOPHIA where THE SAINT finds himself in rural Greece where the episode's titular character (played by a gorgeous Imogen Hassall), the daughter of a stubborn, old-fashion pub owner, is anticipating her supposedly rich New Yorker cousin...
And in that, Reed's antagonistic Aristides Koralis, with a voice like a Bogart-era heavy, is about as dramatic as his name; and with the usual wide, menacing eyes, he's pretty frightening...
But eventually realizes the meager village, that he initially looked down upon as he plans to snag a treasure recently discovered by an anthropologist, is tougher than he thinks, making this role not only his usual smug and hardened but frightened, vulnerable, cagey, doomed.