You know you can just ask for the right to use a name, might be you gonna pay for it. Then you are licensed to use the name in question.
Or they just say plain no, and if you yet do it, and the main focus is not parody of the person in question (most probably it isn’t), you get in severe trouble using the name.
One can assume GTA f.e. did license all real world stuff they use, unless you see in the news distribution gets forbidden because unlicensed usage etc pp… 