Tetsu

is a Kirigakure shinobi.

Appearance
He had medium-length, slicked-back, brown hair and brown eyes. He wears the standard attire of his village along with the forehead protector of the Allied Shinobi Forces.

Shinobi World War Arc
During the Fourth Shinobi World War, Tetsu had his chakra drained by a White Zetsu Army clone, which allowed it to impersonate him. The clone used this cover in order to assassinate Tetsu's comrades. It is unclear whether the real Tetsu is alive or not.

Trivia

 * means "iron".