Goku, gohan, trunks, vegeta, goten, pan, bulma, chi-chi, piccolo, uub, majin buu, hercule, kibito kai, old kai, cell, frieza, Dr. gero, Mr. Popo, Dende, android 18, videl, krillin, roshi I think I missed a few but I won't give you any of the new characters for spoiler reasons. I recommend avoiding this series seeing as it has nothing to do with the magna and the story mainly tries to appeal to db and dbz fans but fails horribly.
Originally Posted by The Beatle
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ie. Goku is made a kid again through a wish and acts like a shameless kid(DB) even bathing nude in front of his granddaughter. He meets new enemies that pawn everyone and has to reach another level of power to defeat them(DBZ). In all this series was just an attempt to make more money by cashing in on its predecessors successes.