Paco is Yanez’s alter ego, his counterpart in the comic duos and the humorous counterpoint of the series. He acts like Yanez miming his expressions, he changes his color depending on where he is. However, he is intolerant to alcohol, suffers from sea-sickness, hiccups, cough, and is allergic to the scent of certain flowers.
Paco is a small, slender chameleon with green (any color of change) scales and black stripes and white eyes with red irises.
He has a swift tongue, useful for catching flies, hitting and blinding the adversaries, and he has bulging eyes that roll around, open wide and wink. Besides he has a prehensile and movable tail which can draw a question mark, a heart, or knot itself.