Gianfrancesco Guarnieri was born on August 6, 1934 in Milan, Lombardy, Italy as Gianfrancesco Sigfrido Benedetto Martinenghi de Guarnieri. He was an actor and writer, known for Eles Não Usam Black-Tie (1981), O Jogo da Vida (1977) and Gaijin, a Brazilian Odyssey (1980). He was married to Vanya Sant'anna and Cecilia Thompson.