Ryōken Inuzuka

is the alpha of a troublesome pack of Inuzuka who reside in the forest of the Land of Fire. After witnessing the creation of Konohagakure in "his lands", Ryōken becomes a constant threat and a pest to the livelihoods of Konoha's citizens.

As per right of an alpha, Ryōken has successfully tamed two dire wolfs — Sirius and Regulus.

Trivia

 * Ryōken's name is literally translated as . His nickname, "Wolf-man", can also be translated as.