Yeder looks very similar to a human but the closer you get to him the more obvious that he is indeed not human. The cellular membrane of Yeder's skin is not as soft or permeable; it has crystalline properties that cause the surface of to react prismatically, giving glitter-like shimmer in moon-light. The perfect smoothness, gloss, and even color of the skin give the illusion of a flawless face. The skin reacts differently to light, creating an angular effect that heightens the perception of beauty. Additionally, the stone-like firmness his body creates a look similar to muscle, making any size human appear more fit as a vampire. Regardless of original ethnicity, Yeder's skin is exceptionally pale. The hue varies slightly, with darker-skinned humans having a barely discernible olive tone, but the light shade remains the same. Yeder's eyes have the ability to change color depending on what he is feeding on. When feeding he will have deep red eyes if he drinks human blood, and medium gold-colored irises if he drinks animal blood. Yeder's teeth appear the same as human teeth; the canines are longer or more pointed than human canines. His teeth are unbreakable, razor sharp on their edges, and strong enough to cut through almost any substance, including another vampire's skin. Less noticeable than these his physical features is his tendency toward stillness.