Shadow Warrior in Chinese / Japanese...

影武者 is the title for Shadow Warrior in Chinese and Japanese.

This may refer to a few video games that share this English title, or a Japanese movie called Kagemusha.

If you are looking for the Japanese TV show, that was originally 影の軍団 (Kage no Gundan), which more literally means “Army of Shadows,” but was re-titled Shadow Warrior when released outside Japan in English.

In Japan, this title can also refer to a body double or decoy of an army general or leader used to avoid assassination. It can also be somebody who does all the work (or fighting) behind the scenes (not getting much, if any, credit).