Tanzō

is a genin-level shinobi from Konohagakure.

Personality
He was seen to be generally worried about his comrades and of losing.

Appearance
Tanzō had short black hair and wore his forehead protector around his neck and covering his chin. He also wore a high collared shirt that was half black and half grey along with a pair of grey pants with his shuriken holster strapped to his right leg.

Chūnin Exams
He and the rest of his team made it to the second phase of the Chūnin Exams. While he was out hunting, Shibire and Minoji decided to open their scroll, the contents of which knocked them out. Tanzō returned to find them in this state. Unable to revive them, they were disqualified.

Naruto's Back: Friends' Tracks
In the anime, two years later, Tanzō and his team entered another Chūnin Exams sponsored alongside Sunagakure. For the first exam, the teams were all split up to take the written test in separate rooms. Shikamaru Nara as proctor explained that everyone only needs to answer one question on the test but their combined score with their teammates will determine if they pass or fail the exam as they need exactly 100 points to pass.

Trivia

 * Written as "鍛造", Tanzō means "forging".
 * In the OVA, Mission: Protect the Waterfall Village!, Tanzō is depicted as a shinobi from Takigakure.