Dennis is Coop's Asian American best friend. He is the only one who believes Coop about Kat. They been friends since pre-school. Dennis has black hair and black eyes but unlike his father, he does not have an Asian accent. He wears a brownish-yellow polo shirt with green pants. Dennis and Coop's Birthdays are one day away from each other and they always wish for the same presents. Dennis hangs out with Coop and he helps Coop defeat Kat. In the title song he is squirted with a hose by Coop. His father and Coop's father argue a lot. He seems to be smarter than Coop.