You've peaked my interest 'ol pardner. What is the name of your actress friend? If someone is in the arts such as film, TV, or theater, they're obviously public figures yet in the overwhelming number of similar circumstances, you use the term, "my friend." I can't understand why any celebrity would care about being identified. Matter of fact, I've never even read about one who didn't want to be mentioned their being filmed or telecast in a production although there might be someone...possibly for embarrassing reasons.
Park Overall, one of the admittedly few celebrities I know, certainly doesn't care, matter of fact she plays on it.