Once a slave of a Tevinter magister called Danarius, Fenris is covered in a series of lyrium-infused markings, which grant him the unnatural ability to phase through solid objects, which is somehow connected to the Fade. Fenris often uses this ability as a weapon, phasing through individuals and solidifying, killing them instantly. However, these markings are also extremely sensitive, and touching them often results in physical discomfort. Because of this, he has an aversion towards being touched. However, the experiments performed on him also caused him to lose all of his memories. He fled to Kirkwall as a fugitive, hunted by the soldiers of his former master. Being a former slave himself, Fenris is happy to help slaves flee their masters or kill the ones who hold onto their chains. But due to his unpleasant experience with the Tevinter Magisters, he is extremely distrustful of mages, even friendly ones. He feels that they would do anything for power, and will inevitably succumb to the temptations that demons and blood magic has to offer.