Adão Iturrusgarai was born in Rio Grande do Sul, Brazil in 1965. He studied commercial art, and published his first comics in 1982. He launched the magazine Dundum, which won him a prize for the best independent magazine in 1992. He moved to France, where he continued working in comics, among others for Flag and Chacual Puant. He returned to Brazil in 1993.
He has scripted for comical TV shows, among others TV Colosso and Casseta e Planeta. He drew 'Rocky & Hudson', about two gay cowboys and 'Los Tres Amigos', a newspaper strip he makes together with Angeli, Glauco and Laerte. Adão Iturrusgarai also makes the comic 'Aline'. He has launched the review Big Bang Bang, and contributed to Chiclete con Banana, Bundas, Veja, General and Virus. His comic albums has been published and distributed in Brazil and Portugal.