When Akira Toriyama first introduced Goku in the pages of Dragon Ball, things were simple: He was a monkey-tailed boy from the wilderness who was raised by a martial arts master who wore a magical ball that when you combined it with six others it summoned a dragon for a wish and there was a girl who wanted them and -- fine, fine, things weren't that simple. As time went on and Dragon Ball shifted from a wild adventure comedy to a more straightforward battle manga as Dragon Ball Z, things became even less simple. Goku's evil brother Raditz showed up on a mission to kill everything on Earth and revealed that he was among the last of a race of alien warriors called Saiyans. That meant Goku's biological folks were just some dead jerks. In the manga, that was pretty much the end of the story, but the explosive popularity of the anime adaptation led to a movie about his Saiyan dad, Bardock. So who was Goku's mom? The question's lingered for nearly 25 years... until now (potential spoilers below).