Trunks (未来のトランクス Mirai no Torankusu?), Trunks is a half-Saiyan boy from the future, his father is Vegeta, the prince of the extinct race of fictional aliens called the Saiyans, and his mother is Bulma.
Trunks is distinguishable from the other characters because he was seen originally to be cautious and calculating. He often thinks through things and plans, advising against random action because of the horrific events in his own time line (even though he does recklessly blow up most of Dr. Gero's Lab in a fit of emotion to stop more Androids from being activated). Originally, this is shown when he told Krillin to take the blueprints of the androids first before destroying Dr. Gero's laboratory. It is also seen in his reluctance to take action unless Goku is present. As the series continues, Trunks becomes more confident and less cautious, but rarely loses his rational thinking. He is also seen learning from his mistakes and poor judgment, such as his mistake in fully powering up the Ascended Super Saiyan Form, where his own powered up muscles was his weakness. Despite Vegeta's arrogance and pride, Trunks still cares for his father, even though it was due to Vegeta's pride that he let Cell absorb #18 and attain his perfect form. He still goes to desperate measures to distract Cell so Krillin can take Vegeta to safety.
Unlike his father or alternate time line self, Future Trunks is often shown to be very polite and well-mannered. This is clearly shown in the original version through his speech with his parents, as he is often heard using the polite form of Japanese phrases when addressing his allies
Trunks has demonstrated the ability to easily utilize the power of buku-jutsu, or "lighter than air" skill, which enables him to fly at will. Trunks has also displayed the ability to suppress his power level, which is seen when he suppresses his power level down to 5, tricking Mecha Frieza's henchmen into believing that he was weaker than he actually was. Trunks uses some signature attacks in the manga but none of them are actually named. The well-known attacks he uses are taken from the Dragon Ball video games such as Budokai or Budokai Tenkaichi, and from there come the names like "Burning Attack", which is a powerful blast Trunks creates by performing a series of rapid arm movements, then releasing an energy ball from his hands with his index fingers and thumbs touching. In the video games he can also perform several other attacks, which are not used in the original manga; "Finish Buster" and "Buster Cannon". The "Heat Dome Attack", which looks similar to the attack he used to kill Cell after returning to his own timeline; and "Shining Sword Attack", which mimics his movements when he killed Mecha Frieza the first time when he came in to the present timeline. Future Trunks utilizes the Z-Sword he acquired in a parallel universe, which he demonstrates on Frieza when he comes to earth.