Robert Wagner, 88 – $15 million
Robert Wagner is famous for his roles on It Takes a Thief and Hart to Hart, as well as for playing Teddy Leopold in the television sitcom, Two and a Half Men. Wagner married several times. In November 1981, his wife Natalie Wood drowned near their yacht called Splendour near Catalina Island, and there were a lot of suspicious circumstances surrounding her death. In 2011, the investigation was reopened and as of February 2018, Wagner is a person of interest. He has refused to talk to the authorities since then.