K

is a chūnin-level shinobi of Kumogakure and was partnered with J.

Appearance
K has short, spiky brown hair and dark eyes. He wears the standard uniform of of the Kumogakure shinobi including flak jacket, a white forehead protector and shin guards.

Invasion of Pain Arc
K and J both notice a huge explosion at Valley of Clouds and Lightning and they saw Killer B in his full eight-tailed transformation. After stating that the Fourth Raikage had forbade him from transforming into the Eight-Tails. As Sasuke Uchiha defeated and captured Killer B, he stated that the Raikage won't be pleased when he found out about his brother. As J went to trail Taka, his partner went to inform the Raikage of Killer B's capture. When J did not send him any messages for a while, K headed back to the Raikage to tell him J was either killed or captured.

Trivia
Compañero de J
 * As is the case with several Kumogakure ninja, "Kē" is the Japanese pronunciation of the letter "K".