Gohan (Teen) is the first-born son of Goku and Chi Chi. This version of Gohan is from the Cell saga, where he was to take his father's place as Cell's opponent during the bio-android's Cell Games.
Gohan fights evenly with Cell at the beginning, but his pacifism came at the worst time and he tries to reason with Cell, revealing to the bio-android his incredible latent powers. Far from deterred, Cell creates the Cell Jrs. and forces Gohan to watch as his father and friends are mercilessly beaten. Android 16 would later urge Gohan to let go of his restraint and give in to his anger. Gohan does so after Cell crushes 16's head, which results in him achieving Super Saiyan 2 and eventually killing Cell at the cost of Goku's life.
Likely due to an oversight, this Gohan's opening dialogue with Bojack has him use his Adult voice (Kyle Hebert) instead of his normal one (Colleen Clinkenbeard) when the game's voice option is set to English.