He was a contributor to the satirical newspaper “O Pasquim”, which began publication in response to press censorship in Brazil following the military crackdown of December, 1968. In 1970 he published the comic book “Os Fradinhos” (The Friars), starring his most acclaimed characters. It was the first Brazilian comic book to be published in other countries. Henfil also worked in theater, film, television and literature, but political activism was his hallmark, creating fictional characters that made acerbic criticisms of the Brazilian political institutions of the time. A haemophiliac, Henfil contracted AIDS through a blood transfusion and died as a result of the disease in Rio de Janeiro.