Alleras, known as The Sphinx, is a novice studying at the Citadel in Oldtown. He was nicknamed the Sphinx by Leo Tyrell. His mother is a trader and he claims to not be a noble’s son.

Alleras is described as having a Dornishman for a father and a Summer Islander for a mother, with dark brown skin, curly black hair, a widow’s peak, and black eyes. He is slender and comely.