Appearance:
As opposed to full-blooded Saiyans, whose hair stays the same from birth, Gohan's is drawn at varying lengths, and changes markedly in style. Many of Yamcha's hairstyles are used by Gohan at various points in his life.
Abilities:
As a child, Gohan is depicted with a seemingly limitless dormant power, which at first only revealed itself when he experienced fierce rage or distress.Gohan unleashes this great power which he possessed within him when he fights Cell in the Cell Saga.
Due to his mixed heritage, Gohan's character also exhibits unusual abilities, possessing power that surpasses that of regular Saiyans.