Nope. There is no difference. @jonknee is right. I once met this camera grip boy at a boxing fight watch here in San Francisco. He worked at various sets in L.A., very close to the filming. He would say how he was on Kim Kardashian's "Reality Show" and how the whole thing was completely scripted for shock effect, drama etc. He said "They'd sometime do retakes and tell Kim - "This time yell at your sister louder, and then throw in a I hate you B*tch at the end."
They are all actors. The only difference I see is hollywood actors are elite level, having gone to school, and experienced and top notch, whereas the likes of Kim Kardashian, that Jersey Shores girl are low end trash, but both types make a ton of money on 2 different medium - the former in big screen, the latter on fake "Reality TV shows", and social media (where they get paid to promote crap).