Shiro

Shiro is a character in Majora's Mask and has an entry in the Bombers' Notebook.

Even though he constantly waves his arms around, this poor guy is so plain and boring that he is invisible. Link found the injured soldier in Ikana Valley while using the Lens of Truth. After being healed with a Red Potion, he gave Link the Stone Mask.

His counterpart in Ocarina of Time seems to be the Wounded Soldier in Hyrule Castle Town's Back Alley who tells Link of how he tried to save Zelda from Ganondorf.

Trivia
Shiro is also the name of one of the carpenters rescued from Gerudo's Fortress in Ocarina of Time.