What was Charles Dolan's Net Worth? Charles Dolan was an American businessman who had a net worth of $5 billion at the time of his death. Charles Dolan earned his fortune as the founder of Cablevision, which was sold in 2016 for $17 billion. His family also controls The Madison Square Garden Company, which was spun off from Cablevision in 2010. MSG owns the New York Knicks, New York Rangers, M...