Marcus Jonasson

Marcus Jonasson, Earl of Hanley, was the top secular leader of the Hand of Sirius and a legendary spymaster, until he left to form the breakaway Gauntlet of Sirius. Notably, nobody seems to be able to find or communicate with Jonasson by either conventional or magical means, including members of the Gauntlet such as Giselle Kira. This has led to some speculation that he may no longer be alive.
His incredibly dark skin was originally a result of Demonac's colour blindness, but he has since been retconned to have some Drow heritage.