Sentinel

A mighty Crucible champion that was killed by Dredgen Yor.
Member of Holborn's Host. Implied to be a Titan.
Crusaded long and hard against the Fallen killing many. Trapped in the Infinite Forest for many years before being rescued. Was like a son to the Speaker.
Designer of the Mask of the Quiet One. Had a deal with Andal Brask.
Original owner of Ursa Furiosa. Held off a horde of Fallen at a choke point to buy a group of refugees time to escape.
Led a team into the Vault of Glass. Forged his Light into the Aegis. Was consumed and transformed by the Vex.