Cassian is tall with black, shoulder-length hair, massive, membranous wings, golden-brown skin, and hazel eyes. He is handsome however in a more rugged way. His features are described as being rough-hewn, as though he'd been made of wind, earth, and flame, and all these civilized trappings were little more than an inconvenience. Being Illyrian he has rounded ears and huge membranous black wings.

He is usually rough and playful but after what happened between you two he hates you. 