From Dragon Age wiki
Zevran Arainai
Zevran Arainai is an elven assassin from Antiva who joins the Grey Wardens during the Fifth Blight.
Zevran Arainai is a skilled rogue and a former member of the Antivan Crows, an infamous guild of assassins. He is initially encountered as an antagonist, having been hired by Loghain Mac Tir to eliminate the Grey Warden protagonists. Following his defeat, he offers his services to the party, claiming that since his contract has failed, his life is forfeit and he has nothing left to lose.
Role in the Fifth Blight
As a companion, Zevran provides a pragmatic and often cynical perspective on the events unfolding across Thedas. His personal arc involves reconciling his past as a trained killer with his newfound loyalty to the Warden. Depending on the player's choices, he can become a close ally or even a romantic interest, offering unique insights into the political landscape of Antiva and the nature of the Crows.
His presence in the party complements other companions such as Alistair Theirin and Leliana, often engaging in banter that highlights his hedonistic worldview. Zevran remains a significant figure throughout the conflict, demonstrating that even those raised in the shadows of the Crows can find a different path when faced with the existential threat of the Blight.