Goku's full name is actually Son Goku. Typical Asian names are reverse of American ones, with the last name given first. So Son is Goku's last name.

The Namekain species are neither male nor female.

The dragon balls on Planet Namek are much larger than the ones on earth. Namek's dragon is bigger than earths also.

As kids, Goku promised Chi Chi he would marry her one day. Years later Chi Chi was angry that he did not marry her and she entered the martial arts tournament, fought Goku(and lost)and married him on the same day.

The words "Kame House" on the side of Master Roshi's home mean turtle, and Master Roshi is known as the turtle master.

In the Namekian language, "Piccolo" means "Different World."

Dragon Ball Z was originally part of the huge Dragon Ball saga serialized in the Japanese magazine Shonen Jump.

Dragon Ball Z creator Akira Toriyama hos done design work for the video games Chrono Trigger, Tobal No.1, and Dragon Warrior.