Shin Uchiha

is a shinobi from the Uchiha clan. He is a man, whose goal is to eliminate Sasuke Uchiha and revive the Akatsuki organisation alongside his son.

Personality
He loathes Sasuke Uchiha and plans to kill him for both murdering Itachi Uchiha and "bringing shame to the Uchiha clan". To achieve that goal, he is willing to sacrifice innocent bystanders like Sasuke's daughter, Sarada Uchiha. He also appears to want to revive Akatsuki.

Appearance
He is a tall and bald man with a horizontal scar runs from his right temple to the bridge of his nose. Notably, he has at least ten Sharingan implants, five visible on his left arm and three addition ones on his head. At the same time, the Sharingan in his right eye socket is held open by eight stitches; to which the sclera appears dark and blood shot. He first appears garbed in a dark, hooded cloak, later discarding it to reveal a dark, long-sleeved, high-collared cloak bearing an Akatsuki cloud emblem on both its front and back, as well as dark pants and boots.

Abilities
His abilities are still largely unknown. However, given that he possesses multiple Sharingan, it can be reasoned that he is skilled in using the dōjutsu and its enhancements.

Sharingan
This man possesses multiple fully-matured Sharingan implanted into his head and left arm. Thus, it can be inferred that he is highly advanced with these eyes and/or has tremendous reserves of chakra, having them constantly activated while showing no signs of tiring. With them, he has heightened perception, able to perform various complicated attack patterns. He also owns a mysterious creature with a Sharingan and is able to share vision with it and others.

Mangekyō Sharingan
Through unknown means, he was able to awaken the Mangekyō Sharingan with an identical pattern to his son and spying creature. With his right eye, he was shown to be able to telekinetically manipulate and launch weapons. He is also able to perform a Space–Time Ninjutsu through his right eye, seemingly able to use this ability through his creature as a medium. The same Mangekyō pattern is also reflected on several Sharingan on his head and his left eye.

Naruto Gaiden: The Seventh Hokage and the Scarlet Spring
With the intent to eliminate the disgrace of the Uchiha clan, he tasks his son Shin to spy on Sasuke. After their brief scuffle, Shin returns to his father. After finding out that Sasuke's daughter, Sarada Uchiha, left Konohagakure, he orders his son to abduct her. His spy creature appears, telling Shin to retreat against the Hokage, to which it used Space–Time Ninjutsu and took Shin along with him.

Later, ready to begin his next attack, the man called forth Shin and six copies of him, before teleporting with them. They arrived above Naruto and Sarada and attacked. After Naruto easily repelled the attack, Sasuke appeared to aid Naruto.

Trivia

 * means "new" in Japanese, possibly referring to how he is a new Uchiha.