Hercule is a popular and charismatic martial artist who is often seen as a comic relief character in Dragon Ball Z. His real name is Mr. Satan, and he often takes credit for defeating villains that are actually defeated by the Z Fighters. Nevertheless, he is shown to have some actual fighting skills and is a beneficial ally in certain circumstances. Hercule's role in the series is primarily to provide comic relief and to showcase the human characters' limitations and vulnerabilities.