Ferb Fletcher is characterized as a tall, skinny boy with green hair, an uneven eyes, big nose, and wears purple pants and a tan shirt. He lives in Danville and doesn't say much, but sings, invents, thinks about Vanessa and inventions, and corrects others by saying things like "Well, actually I-" or pointing out historical inaccuracies. Others see him as more of a man of action than words and view him as intelligent.