Denka

is a ninja cat that lives with Nekobaa at an Uchiha supply base. Suigetsu mistakes him for a tanuki.

Trivia

 * Hina and Denka are actual names of cats that are owned by Naruto's voice actress, Junko Takeuchi.
 * Ironically, Junko Takeuchi also voiced Hina, while Denka was voiced by Kazuhiko Inoue, who also voiced Kakashi.