Dave has the appearance of a very young adult, in his 20s. He has almost shaved brown hair, with round bangs on the sides. He wears a blue set of long-sleeved clothing, consisting of a medium-colored shirt and dark-colored pants. Due to an scientific experiment, Dave lost the rest of his legs that come just after his shins, having dark metal lozenge-shaped plates as replacements, in addition to always sitting in a black and light gray wheelchair.