Dragon Age: Origins.  Cullen is a young Templar posted in Ferelden's Circle of Magi. Inexperienced and somewhat naive, he develops a crush on one of the mages under his charge but is determined never to act on it. Things go to hell after the Battle of Ostagar and the mages at the battle return. Uldred summons demons and the tower is sent into anarchy. Despite the Templars best attempts to fight back, they are all whittled down until they've either fled or died...except for Cullen. Cullen is instead trapped and left to fight off demons on his own, slowly losing his mind from the trauma of seeing his comrade slaughtered and the temptation of the demon imprisoning him. By the time he is released, he is a changed man.

Dragon Age 2.  After the events at Kinloch Hold, Cullen was sent to Greenfell to recover from his experiences. Eventually, he was sent to Kirkwall's Circle to serve as a Knight-Captain under Meredith Stannard. Changed after his experiences during the Blight, Cullen sees mages much differently now. He views them as ticking timebombs waiting to go off. They can't be treated as normal people because normal people can't summon armies of demons. His trauma is buried under his duty...until he realises Meredith is becoming more and more unstable. He's forced to make a choice between being a Templar and being a good man.

Dragon Age: Inquisition.  After the fall of Kirkwall's Circle and the beginning of the Mage-Templar conflict, Cullen is temporarily promoted to Knight-Commander. Disillusioned with the life he'd dedicated himself to, he jumps at Cassandra's offer to instead work with her and leaves the Templar Order. When Divine Justinia's Conclave is destroyed, he finds himself the Commander and leader of the fledgling Inquisition. Under it all, he is battling to finally sever the last ties he has with his former life as a Templar in the form of the lyrium which he'd been taking for so long.

fandom, age.  Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.