The "Hart to Hart" star, pictured here with his wife, Jill St. John, has been acting for decades, but he got a boost from the fact that his father worked in a powerful, money-making industry.
BING: Click here to find out where his father made his money
FIND: What insanely wealthy heir was St. John briefly married to?
SEARCH: Watch episodes of 'Hart to Hart' online
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