Dragon Age: Dinlaselan
A twisted man held prisoner below the Silver Arch in Arlathan. Born Solas thousands of years prior, he slept after locking the Evanuris into sleep using his Foci. The Elves that survived the Fall of Arlathan knew him as the Betrayer, the Trickster, and invoked his name as an insult and threat.
He awoke weakened during the time of the Inquisition, and became the consort of the Inquisitor herself. Still, his guilt led him to tear down the Veil and create Thedas as it is now.