Marley Russell is a black and beige Jack Russell dog with very ruffled fur and large, pointy ears. He has dark brown fur with a lighter beige fur that surrounds his eyes and mouth. He has a long snout that is slightly open, bearing his many sharp teeth, and he has a small black nose with three freckles surrounding it on each side of the snout. Unlike his left eye, his right eye has a white sclera and is smaller, and the black part is actually one of his eyeholes.