Waraji

and his partner Zori were swordsmen hired by Gatō to be his bodyguards.

Land of Waves arc
Gatō ordered them to kidnap Tsunami to force Tazuna, Tsunami's father and the bridge builder, to stop building his bridge. When Waraji threatened to kill Tsunami's son Inari, Tsunami also threatened to kill herself unless they let him go. Since Zori was told by Gatō that they only needed one hostage, they leave Inari alone and proceed to take Tsunami to the bridge. However, Inari (remembering what Kaiza told him) ran to save his mother. Ultimately, Naruto came and got Tsunami away from Gatō's men. Both Zori and Waraji were then defeated by Naruto's Shadow Clone Technique and were tied up and left there.

Trivia

 * Zori and Waraji make a later appearance in the Konoha festival episode, when Naruto has to go to the bathroom.