Argentavis is a boy with dark hair and dark brown eyes. He has a skinny yet tall frame for a 12-year-old boy. His favorite color is navy, which dictates the color selection of his clothes. His hair is on the wavy side and is often sticking out and not easily combed.

Argentavis is a curious boy who loves to learn and experience life headfirst. He is polite, unusual for his age, as he tries to befriend everyone and mediate conflicts between his peers. He is emotional and loves to run around and get praised by his wizard parents. He loves school and finds it easy to learn and implement skills like math and science. He is fascinated by the night sky and the stars in particular.

Argentavis was homeschooled in Dublin Ireland before Hogwarts, so he didn't have school experience. Yet he was very social with the neighborhood kids, making notable friends. His mother was very affectionate, and his dad was on the stricter side, but still kind enough to fulfill his fatherly roles of caring for his son.

Argentavis's first instance of magic was at the age of seven while he was on top of a tree in his backyard. He suddenly slipped off a tree branch and caught himself by levitating before falling to the ground. Since then, he has been capable of levitating objects and himself.