Appearance and Personality
He has silver skin and purple eyes, with several purple horns sticking out of his skull. Instead of hair, he has a layer of black skin/carapace on top of his head.
He is quite strict, as he was seen disciplining his subordinates.
Power and Abilities
His powers have not been shown, but given he is a High Ranker, he can be expected to be powerful. This reinforced by even the rambunctious Lo Po Bia Haratcha being humble and respectful towards him.
McCage is shown disciplining all the Division Commanders because of Lo Po Bia Haratcha's antics while they were standing by in the Front Command Ship. He is surprised by the sudden call for reinforcement but does not end up entering battle himself.