Actresses? Nope...
Plenty of crushes, but no erotic dreams. A couple of real women of my acquaintance have appeared in dreams like that... always a bit awkward, the next time I saw them. (No, I didn't say anything!)
The ones that really stick with me have been extremely rare, and have featured a woman I simultaneously know I have never met in waking life, but within the dream seems as if I've known her for a loooooong time. It hasn't been the same woman each time, either. I wonder afterwards about who she is, and where and when I knew her... or will know her. Dreamwalks are strange that way.