西瓜山 河豚鬼

Fuguki Suikazan (西瓜山河豚鬼, Suikazan Fuguki) was a high-ranking shinobi of Kirigakure and a former member of the Seven Ninja Swordsmen of the Mist.

Manga Debut: Chapter #507
Anime Debut: Naruto Shippuuden Episode #251

(source: Narutopedia)