Shawn G. Henry

Sumner Redstone

Chairman, CBS , Viacom
AGE: 85

Redstone refuses to step back. In the past two years he has fired one CEO, sued Google, and trash-talked Tom Cruise. The mogul stays vibrant with plenty of fish, daily exercise, and blenders full of antioxidants. Despite longtime speculation that he would hand the reins to daughter, Shari, that seems increasingly unlikely.

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