Vergil's demonic form keeps the design of a blue, humanoid creature. It has several white imprints detailed on the trench coat with the three coat tails separating into four (with its design when airborne being bat-esque wings), his spiky hair changes into a crest that has a fin shape at the top, his neck gains a membrane that curves inwards, the spine merges with two dark-colored bones exposed at the top as well, his sheathe alters and attaches to his sleeve while becoming a clawed appendage, and his vest changes to a undercoat. Also, Vergil's feet are unchanged but darkened, his teeth are fangs that show.
Beowulf is mainly blue and glows white. Also as a vertical strip-like wings, but has an additional pair to them, he keeps his blue "coat" and his cranial crest flats to a thinner crest.