Zack (DEAD OR ALIVE)

Zack is an African-American DJ who specializes in the Muay Thai boxing style. After hearing about the tournament, Zack enters to increase his popularity and make a name for himself, and apparently succeeds in that endeavor to an extent. He also earns a high enough ranking in the tournament to gain a prize of significant monetary value. Zack enters the next tournament to please his fans and gain more money, in which he once again succeeds and then returns to his life of leisure. After exhausting all his financial reserves, Zack enters the third tournament to earn more money so that he can enjoy a Las Vegas vacation. However, it is revealed he did not actually win the tournament, but Ayane, who defeated Omega (Genra). Due to Ayane's departure after the tournament, Zack claims the title by default. Shortly after his "triumphant victory", Zack goes to Las Vegas and using his earnings, bets it all in various casinos. He wins enough money to buy Zack Island, an extravagant private beach resort. He then invites all the women of DOA under the false pretense of another tournament, who take the bait and arrive on the island where Zack "convinces" them to stay for a brief two-week vacation. He is accompanied by his girlfriend Niki. Unfortunately, the infamous Zack Island has sunk to the bottom of the ocean, and all that remains is a mountain of debt one hundred times the size of the original investment.
In the fourth tournament, Zack's sights are already set on his next conquest: the DOATEC Tritower, three enormous pillars stretching up to the sky. Unfortunately, the tower catches on fire (as a result of the Mugen Tenshin attack) as Zack is climbing it. He manages to escape the flames, saving Helena's life in the process. He is then made the winner of the fourth tournament due to his bravery (Helena was the original winner). After finding the treasure of an undead Egyptian pharaoh in DOA4, Zack and Niki use their newfound wealth to form an unexplained contract with extraterrestrials who use a tractor beam to raise Zack Island (now called "New Zack Island") from the ocean floor, allowing Zack and Niki to once again restore it into an island paradise for the ladies of Dead or Alive to come play in. After proposing to Niki, Zack is apparently killed in a fiery explosion after a series of flaming meteorites once again destroys the island. However, it is later revealed that he was saved by the ambiguous alien abduction ray in classic Deus Ex Machina fashion.