Are the characters in Naruto human?Yes the characters in Naruto are human. First of all why aren't the villagers ninjas or you could say shinobi like Naruto and Itachi and the others. Second in the first Naruto season you find out how they use their chakras when Kakkashi tells naruot and the others that Zabuza might be alive Naruto and the others were finds out learning how to climb a tree without using thier hands. Third to use chakra must be born with the ability to use chakra. Third they use some of their spirtual energy and a little bit of their own life force that's how Naruto is able to use shadow clones or the rasegan.
Yes they are humans (except few). But there are two kinds :
- One who posses Chakra and can perform various types of jutsus. They are called shinobi. They involve in warfare etc.
- One who dont posses chakra. They are shown as common civilians and citizens, travellers etc. They cannot perform jutsus.
Chakra was distributed among human biengs by Sage of Six Paths (Who himself inherited from his mother kaguya who herself was an alien).