Todoroki

Todoroki is the captain of the guards on the ship transporting Gantetsu. Years before Naruto, Sakura and Lee had accepted the mission, the Shinobazu attacked his home, resulting in the deaths of his parents. Todoroki saw Gantetsu with his hand over his brother's mouth before flaming debris fell into the room the two were in. Believing his brother to be dead, Todoroki trained hard to prepare for the opportunity to avenge him.

Naruto finds Todoroki below decks, threatening to kill Gantetsu. Shortly afterward, one of the Shinobazu ninja uses a metallic wire technique to slice the ship in half, separating Naruto from everyone besides Gantetsu and Todoroki. Todoroki consistently refused to trust Gantetsu, and eventually tried to kill Naruto and Gantetsu to gain his vengeance and escape blameless. Upon learning of his brother being alive, Todoroki reluctantly agreed to let Gantetsu help them. Todoroki reunited with his brother, and tells Gantetsu that while he can never forgive him, he will allow him to remain with his orphans.