Akamaru (赤丸, Akamaru) is a nin-dog (忍犬, ninken) and the partner of Kiba Inuzuka.
When Sasuke makes his return back to Konohagakure, Akamaru accompanies Kiba to congratulate his return. Later, Sasuke agrees to walking Akamaru since Kiba is busy but finds it irritating when he is forced to pick up Akamaru's feces. Afterwards, Akamaru and Kiba join with their teammates in a game of kick the can with Sasuke being "it". The group fails to capture the can due to Sasuke using his Sharingan to gain the advantage, however, Naruto completely transforms into the Nine-Tails and kicks not only the can away but Sasuke and destroys half of the village.