Kamek

Kamek, nickname Fang, is an old, yet powerful Magikoopa and apparent adviser to Bowser, or at least high-ranking member in the Koopa Troop. He first appeared in Super Mario World 2: Yoshi's Island. He is also Baby Bowser's caretaker, and continues to look after Bowser, even in the present day.

Role in the Koopa Troop
Kamek's role in the Koopa Troop is yet to be made completely clear. What is certain is that he is Bowser's caretaker and possibly was once the caretaker of the previous Koopa king. Although Kamek is of the highest rank in the Koopa Troop, his actual title and role is not really known. He does seem to have a certain level of military command; especially back when Bowser was young, when he took almost complete control of the army of the Koopas. This was shown again in Yoshi's Island DS, although this is the present day incarnation of the wizard, confirming that he still maintains a position as one of Bowser's generals. He spends a lot more time actually in the field than Bowser, and may also serve as one of Bowser's individual agents.

There is also a possibility that he is the head of the Magikoopas who serve under Bowser, in the same manner that Goomboss rules the Goombas as a "puppet king". This is evidenced by the Magikoopa bio from Mario Superstar Baseball, which calls him "the best of the Magikoopas", and in Super Princess Peach, where he commands the only legion of them in the entire game.

If Kamek is about the same rank as Kammy Koopa, a fellow main Magikoopa, it is likely that he will be ranked slightly below Bowser and take orders only from the Royal Family themselves.