Who most likely is the speaker?

And for today’s entertainment news. Renowned film company, Dougherty Films, recently announced they’ll be shooting a movie right here in Brayville. In fact, the crew is looking to lease a furnished apartment to film some of their main scenes in. In the movie, the apartment that is chosen will be owned by the award-winning actor Santiago Diaz’s character. Now, if it were someone else, you might not be as enthusiastic to let a film crew into your home for several weeks. But this is Santiago Diaz we’re talking about. To have your apartment considered for the film, fill out an application on the Dougherty Films Web site.
77.Who most likely is the speaker?
78.What is Dougherty Films looking for?
79.What does the speaker imply when she says, “But this is Santiago Diaz we’ re talking about"?