A former sergeant with the New York Police Department, Marines had been ­providing security to the boy band Aventura when group member Romeo Santos tapped him as his ­manager 13 years ago. Marines, a single father of one who lives in Manhattan, is street-smart and protective of the Bronx-born bachata superstar. After Santos’ two sold-out shows (100,000 tickets sold) at Yankee Stadium in 2014 and YouTube’s report in June that Santos’ views have topped 4 billion, “we’ve been able to show our strength in ­numbers,” say Marines.

Greatest Recent Accomplishment: “Negotiating for Romeo to perform on The Tonight Show Starring Jimmy Fallon and, after that, Today.”