Mr. Satan, real name Mark, is a world-renowned martial artist celebrated as Earth's champion, though his combat abilities are significantly surpassed by the Dragon Team. He achieved legitimate fame by winning the 24th World Martial Arts Tournament during a period of stronger fighters' absence, defeating opponents like Spopovich and Jewel through conventional strength and showmanship. His public persona, crafted from grandiosity and self-promotion, includes claims of defeating Cell and Majin Buu—events where he executed pivotal behind-the-scenes actions. During the Cell Games, he retrieved Android 16's head, facilitating Gohan's Super Saiyan 2 transformation, then falsely claimed full credit for Cell's defeat, cementing his heroic image. In the Majin Buu saga, he transformed from a boastful fraud into a genuine consequence. Befriending the innocent Majin Buu, he persuaded him to abandon violence, indirectly triggering Buu's fission into good and evil entities. Later, facing Kid Buu, Mr. Satan leveraged his celebrity to rally Earth's skeptical population behind Goku's plea for the Spirit Bomb, proving instrumental in saving the universe. The reformed "Mr. Buu" became his lifelong companion and housemate afterward. In *Dragon Ball: Yo! The Return of Son Goku and Friends!!*, set two years post-Kid Buu, Mr. Satan wrestled with the moral weight of his unearned fame. He constructed a lavish hotel commemorating his alleged victory over Buu and hosted a Dragon Team banquet as an unspoken apology. His daughter Videl openly criticized his ego during the event, highlighting his internal conflict. When Abo and Kado, remnants of Frieza's force, attacked, Mr. Satan witnessed the hotel's destruction. Videl interpreted this as karmic retribution for his vanity, prompting him to acknowledge his flaws and vow humility. Throughout later series like *Dragon Ball Super*, Mr. Satan maintained wealth and status but prioritized family, showing deep affection for Videl, Gohan, and granddaughter Pan. His bond with Mr. Buu endured, often leveraging their friendship to enlist Buu's aid in global crises. Despite occasional relapses into cowardice or attention-seeking—such as fabricating stories about battling Beerus—his core integrity surfaced when protecting loved ones or supporting allies. His legacy defines paradoxical heroism: a physically outclassed showman whose influence, charisma, and unexpected courage repeatedly contributed to Earth's salvation.