noun
body double; political decoy
Originally a warrior who served as a double for a military leader to deceive enemies. In modern usage, often refers to a person who stands in for a public figure, especially in politics, to protect them or mislead others.
戦国時代、武将は影武者を使って敵を欺いた。
During the Warring States period, warlords used body doubles to deceive their enemies.
あの政治家の演説は影武者が代
It seems that politician's speeches are being given by a body double.
noun
wire puller; person behind the scenes; shadow commander
Figurative extension: a person who manipulates events or controls others from behind the scenes, often without appearing publicly. Common in political or organizational contexts.
彼は会社の影武者として、社長を陰で操っている。
He acts as the company's wire puller, manipulating the president from behind the scenes.
この政策の本当の立案者は、官邸の影武者だと言われている。
The real architect of this policy is said to be a shadow commander in the prime minister's office.
替え玉 refers to a substitute or impostor, often in a more deceptive or fraudulent context, while 影武者 emphasizes the role of a double for protection or behind-the-scenes control.
黒幕 specifically means 'black curtain' and refers to a hidden mastermind or string-puller, often with a negative connotation. 影武者 can be a person who acts as a front or double, not necessarily the ultimate mastermind.
Compound of 影 (kage, 'shadow') and 武者 (musha, 'warrior'). Literally 'shadow warrior', originally referring to a warrior who served as a double for a feudal lord in battle. The figurative sense of a behind-the-scenes manipulator developed from the idea of someone acting in place of the real leader.