Sagan

Sagan (サガン, Sagan) is a shinobi from Iwagakure.

During the Fourth Shinobi World War, Sagan was assigned to the Fourth Division. He was one of the few shinobi of that division to survive Madara Uchiha's assault on the battlefield. Making his way over to where Ōnoki was, he informed the other that the Tsuchikage was still alive, though gravely injured. He later alerted those present when Madara and Mū had reconstructed, and watched on in despair as Madara continued his assault on the depleted division. When the five Kage assembled on the battlefield, Sagan looked on in amazement as the battle between the titans unfolded, noting that he felt severely out of place. Later, Sagan was seen pursuing Mū alongside Dodai and the Hokage Guard Platoon.

Manga Debut: Chapter #561
Anime Debut: Naruto Shippuuden Episode #322

(Source: Narutopedia)