Mr. Satan is a weak older fellow that takes all the credit after the Z fighters defeat Cell. He has won many Tenkaichi Budokais (during the period of that Gokou and friends didn't compete), and is renowned worldwide for his so-called "strength." Mr. Satan is actually pretty strong, but he is absolutely no match for any of the Z fighters or the villains they face. When he is confronted by fans, or introduced to fans at a public event, a mock-heroic theme plays that stays with you longer than you'd like it to. If he's not trying to impress the media, he's hanging out with his best friend Buu and pet dog. During the Buu saga, he was actually of some help when he stalled Buu while Gokou formed a Genki Dama (he also demanded that the people of the earth give up their energy to Gokou for his attack) to defeat the evil enemy. He is the father of Gohan's wife, Videl, therefor is Gohan's father-in-law.