Races

Saiyan: These are the strongest race in DBZ.  They have tails and if they look in to the moonlight they will turn oozaru.  These are the only race that can go SSJ.

Human/Z fighters: These are humans that know how to focus there power.  They are not as strong as saiyans or nameks but they still surpass the average human.

Normal Humans: These humans have no power or very little power at all.  These are normally just characters in the story.

Villians: Not really a race,but every villian is a different race.  There power levels can be enormous or very small.

Fusion: This isn't a race either but people can fuse together to become much stronger than before.

Nameckian: This race is green and they are the second strongest next to the saiyans.  This race has the ability to regenerate any part of their body if there core still remains.