Began his career creating illustrations for French publisher Semic, for whom he drew the stories of the character Kit Kappa. In 2006, debuted in the North American market, at Marvel Comics, and ever since he has works published also by DC Comics and Image Comics. Marcelo is a regular Artist for the title Teen Titans GO!, based on the popular Cartoon Network animated show. He participated in the monumental tribute anthology in memory of late comics artist Mike Wieringo. Currently works on the title DC’s Super Hero Girls, for DC Comics.
Começou ilustrando para a editora francesa Semic, onde desenhou as histórias do personagem Kit Kappa. Em 2006, estreou no mercado americano, pela Marvel Comics, e já tem trabalhos publicados pela DC Comics e Image Comics. É desenhista regular da série Teen Titans GO!, baseada na animação do Cartoon Network. Participou da colossal antologia em tributo ao falecido Artista Mike Wieringo. Atualmente desenha DC’s Superhero Girls, para a DC Comics.