NOAD describes a figurehead as
a nominal leader or head without real power.
I'm wondering if there's a complementary one-word term for the person who does wield the power in such a situation. I'm aware of the phrase, power behind the throne,
a person or organization that exerts authority or influence without having formal status.
I'm just hoping there's a way to refer to such a person more directly and succinctly.
Best Answer
Though kingmaker originally meant the person with power to influence the choice of prince, it is also now used in a larger sense of power behind the throne.