Mark Cuban is a Shark from the TV series Shark Tank . He is most famously known as the owner of the NBA's Dallas Mavericks and and the chairman of the HDTV cable network AXS TV. Probably the most popular of all the Sharks, Cuban is reportedly worth $3.2 billion.
Cuban is a self made billionaire, starting out by selling stamps door to door. In 1999, Cuban sold Broadcast.com for $5.7 billion in stock to Yahoo. He played the President of the U.S. in Sharknado 3, Oh Hell No!