Belim

Belim (also known as "Belim the Blade") is a Grey Warden.

Background
At some point in 9:10 Dragon, Flemeth contacted Belim and sent him to prevent Lyeldan from releasing Justiel.

After Lyeldan failed to return to Kirkwall, his parents left to search for him. They joined Belim not knowing he had his own intentions. While in the Frostback Mountains, they were attacked by wolves. To survive, Belim cut down a rope bridge while the Beltores were still on it.

Ridden with guilt, he joined the Grey Wardens. He was one of the few to survive the battle at Ostagar.

Dragon Age: Intervention
In 9:10 Dragon, Belim fails to stop Lyeldan from releasing Justiel.

By 9:32 Dragon, Belim begins to hear the Calling that all Grey Wardens hear. He waits in the Frostback Mountains before venturing into the Deep Roads. There, the Heroes of Ferelden meet him. He openly admits his guilt to Lyeldan and they come to an understanding.