An actor in a porn movie isn't really an actor, that's not to say they can't act, just that in porn they don't need to act well. And also I'm not saying that all non-adult actors can act, as clearly some can't very well at all.
I believe Eva Henger has made a few non-adult movies, but she's better in the flesh.
http://www.subsim.com/radioroom/show...postcount=1241 