Thel is a character from the Halo video game series, created by Bungie and later developed by 343 Industries. She is a member of the Covenant, a coalition of alien species, and serves as a Prophet of Truth. Thel is known for his strong leadership and strategic skills during the Human-Covenant War. In the series, Thel's character is explored in the novel Halo: The Forerunner Saga and the game Halo 2. He undergoes significant development, questioning the motives of the Covenant and ultimately seeking redemption. His journey highlights themes of loyalty, betrayal, and the search for truth.