Future Gohan

Future Gohan is the alternate timeline counterpart of the main timeline Gohan, who is seen in the History of Trunks and the episode, Ghost of Tomorrow.

Personality
Due to the apocalyptic world that he spent the latter half of his life in, Future Gohan is shown being very serious and more aggressive than his present timeline counterpart, but does retain his calm and joking nature, much like his father. Future Gohan is shown to be in quite a bit of pain and stress after all the years of challenging the androids alone, and has a sort of "do or die" attitude.

However numerous times he appears to hide it, let go, and just enjoy life for what it is worth, most notably when telling Future Trunks to forget about becoming a Super Saiyan until he knows he is ready (in the anime special). Future Gohan also is incredibly close to Future Trunks, and appears to even consider him as his little brother. He also appears to be deeply angered by the deaths of his close friends, which is told out loud to Future Trunks by stating that he remembers back to how the androids killed Future Piccolo and Future Krillin when transforming into a Super Saiyan.