power broker

Noun

 * 1) A person or group having the ability to influence important decisions, especially in public policy, politics, and business.

Translations

 * Chinese:
 * Mandarin: 權力經紀人
 * Czech:
 * Finnish:
 * French:
 * Georgian: რუხი კარდინალი
 * German:
 * Italian: eminenza grigia
 * Japanese:
 * Romanian:
 * Russian:, влия́тельная фигу́ра
 * Serbo-Croatian: siva eminencija