Sergio Grieco (13 January 1917 – 30 March 1982) was an Italian film director and screenwriter.
[2] He began his Italian film career as a script supervisor in 1939, working his way up to an assistant director the following year.
His directorial debut was Il sentiero dell'odio (1950), beginning a prolific career in a variety of genres.
He met his wife Teresa Terrone (renamed Susan Terry by her agent), who appeared in several of his films, beginning with The Mysterious Swordsman/Lo spadaccino misterioso in 1955.
Grieco is best known for his adventure, swashbuckler, sword and sandal and Eurospy films with Ken Clark, including the Secret Agent 077 series of imitation James Bond films, which he directed under the pseudonym 'Terence Hathaway' (see filmography).