Trunks
son of Vegeta and Bulma. He was able to reach Super Saiyan level at a young age and can fuse with Goten to become Gotenks. In Dragonball GT, he journeyed with Gokou and Pan in search of the Black Star dragonballs.

Trunks (future)
future Trunks who travelled back in time in hope to alter the future. He grew up in a world where Gokou died from a heart attack. Because Gokou was dead, no one was able to defeat Androids 17 and 18. The Androids killed the rest of the Z warriors and terrorized the world. Future Trunks travelled back in time to give Gokou medicine to prevent death from the heart attack. Upon arrival, Trunks killed Freeza and his crew. Later, he was killed by Cell but was revived by a wish from the dragonballs. Afterwards, Future Trunks returned to the future, which remained unchanged, and easily killed Androids 17 and 18 because of his training in the "present" timeline. At the same time, Cell was about to steal Trunks' time machine, but Trunks eaily killed form 1 Cell.