Abraham Tower

Commander Abraham Tower, some times simply refered to as the Commander, is the Human chief commander for the Guardian Units of Nations, succeeding Commander Hugo Brass in 3237.

Chief Commander of GUN
Abraham was responsible for hiring Hope Kintobor as a mechanic and Shadow the Hedgehog as a special agent, sending the latter on a mission to retrieve a Chaos Emerald and ordering Hope to build a Zone transporter to help accomplish that mission. (SU: #1)

Commander Tower later sent Shadow and Rouge the Bat on a mission to New Megaopolis to destroy Dr. Eggman's new weapon, the Doom Laser. They, with the help of Sonic, proved successful in their mission. (SU: #2)

Personality
Commander Tower seems to have a heart of stone, as he didn't even show concern for Shadow, who said was becoming one of his top agents, while Hope Kintobor was terribly worried over the hedgehog's well being.

Background information
Commander Tower appears to suffer from complete heterochromia as he has one green eye and one brown eye.

Ian Flynn came up with the name "Abraham Tower" due to Tower's game counterpart, the Commander, not having a real name stated yet. He gave him the name because he "didn't want to be trapped by calling him 'Commander' or 'sir' every stinkin' time". The name came from and old fan-character made up by Flynn for a fan-comic that he never finished. The name is supposed to evoke an idea of authoritative power. "Abraham," whether biblical or U.S. historical, lends itself to the notion of an influential leader. "Tower" is simply enough - tall, rigid, standing over all others.