Dave is a very tall and lanky Mobian nutria (or sometimes mistaken as beaver) with aqua fur and that dumb look on his face.

Overall, Dave is a complex character. Outwardly, he is a nerdy, dorky and awkward teenager who still likes playing with action figures. He is also extremely rude, calling Team Sonic losers. He is also a devout fan-boy and suck-up, being overly enthusiastic about any menial task given to him by the subject of his admiration. While also kind of a loner, Dave nevertheless cherishes the bonds he has with his friends.