3. James Packer

•  Net Worth: $6 B                                                                      
•  Source of Wealth: gaming
•  Citizen: Australia
•  Age: 46

James Packer severed his family's deep ties to the media sector in 2012 when he sold pay-TV company Consolidated Media Holdings to Newscorp., pocketing $1 billion. That leaves him to focus on his gaming empire Crown Ltd., which owns casinos in Australia and has a joint venture in Macau. Packer inherited a $5 billion business when his father Kerry Packer died in late 2005. The family fortune was built on media assets. James operates a charitable foundation named for his father. He seeded it with $10 million in 2006. He has been a strong supporter of a program to help indigenous Australians move into corporate jobs. In December 2012 he took delivery of a $20 million super-yacht called Seahorse. His second wife, Erica Baxter, is an Australian pop singer and model.