Atic is a hellhound with a wolf-like appearance. He has a pointed, dog-like muzzle with sharp and pointy teeth, and a dark grey nose. His eyes have red sclera and white irises just like his sister as he is her twin.
His fur is white with grey countershading encircling his face, grey patches on his shoulders, and long, voluminous silver hair swept to the side to reveal his dark grey ears; the left of which is pierced with two small, black hoop-piercings, while the right is ragged. He has a large, dark grey bushy tail with white on the underside.
Separated from his sister at birth he hadn't learned about her till later in life. Once finding out he decided to go to find his long lost sister. He could literally pass for his sister if he didn't talk and if he wasn't facing someone. As unlike her it is apparent he is male.