Kingmaker and Wire-puller

Kingmaker noun - An important person who can bring leaders to power through the exercise of political influence.

Wire-puller and kingmaker are semantically related in power behind the throne topic. In some cases you can use "Wire-puller" instead a noun "Kingmaker", when it comes to topics like person with power.

Wire-puller noun - One who uses secret influence (i.e. pulls wires or strings) for his own ends.

Kingmaker and wire-puller are semantically related in power behind the throne topic. You can use "Kingmaker" instead a noun phrase "Wire-puller", if it concerns topics such as person with power.