But, why do you want to know? Seriously, if they wanted you to know who they are, they would tell you. In a way it shows a lack of respect. It'd be like going up to Donald Trump and saying, "yo donnie, wot up playa?"
There's no need to know their real names, unless they want you to know.
Scrotal Safety Tip #3: Purchasing a swimsuit with built-in underpants will greatly cut down on excess scrotal-stress during a spirited game of volleyball and the like.