||Trunks is Vegeta's and Bulma's first son.
When he first arrives (to destroy Frieza on earth) he has come from the
future and so lets nobody know who he is except Goku (although Piccolo
overhears too!) Trunks came from the future not only to destroy Frieza but
to warn Goku of the coming Androids (which in his timeline killed most of
|Z warriors, including Piccolo meaning
that they could no longer use the Dragonballs, and Goku's coming fatal
heart attack (which he gives him medicine for to prevent) For some reason
Trunks stays in this timeline, even being there at the same time even as
his younger self. He is a very powerful fighter (because of being Vegeta's
son is like Gohan, half Saiyan) When he is a child he
becomes very good friends with Goten (Goku's second son) and they get into
trouble frequently. Trunks' trainer is Gohan.
He has the ability to shoot energy
beams from his hands, is very fast (still not as fast as Piccolo) but still
a very strong fighter with abilities similar to those of Gohan (because he
was trained by Gohan!) He is also a key character.