Capo is a main antagonist in Porco Rosso and later on he helps the hero Marco Pagot. He is the leader of Mamma Aiuto Gang. Like other air pirates the well being of Gina and Fio Piccolo is important to him.
Mamma Aiuto Gang first seen when they kidnapping many little girls from a cruise liner. Still he cares for the girls. So he takes all girls on the liner, because he doesn't want to separate the girls from their friends.