We don't normally use an article with people's names. There may be some rare exceptions to this.
When referring to a well-known person, or a person with the same name as a well-known person.
I just met Donald Trump! Of course it wasn't the Donald Trump. But my server at Macdonalds had the same name as the President.
When clarifying which of two people with the same name.
Get this form signed by David. — Which David? Do you mean the David in HR or the David in the accounts department?
It may be possible, in your situation to use "the", but this would be a very rare and slightly jokey situation. For example, in the company there are three senior programmers. They are all called Susan (this is a coincidence). People in the company now talk about "The Susans" to mean "the three senior programmers":
Rebasing the project on a server/client model could be a lot of work, but it might be worth it. Talk to "the Susans" and get their opinion and approval before continuing.
This is possible but very rare. It needs there to be several people with the same name, who form a natural group apart from having the same name. It would be plural in this very rare situation.
More common is to refer to a family as, for example, the Lloyds. It means the same as "The Lloyd family".
I'm going to visit the Lloyds this weekend; it's Mark Lloyd's birthday.