The fact that many domains are not being in use, but on sale, is what makes many people angry. It is called cybersquatting, and only big companies, who have copyrighted the .com name can get it.
For you, you need to get creative, and many people who are just now putting up their first website, are facing the same problem.
What you can do.
THE HYPHEN SOLUTION: The problem with doing the hyphen is, that people tend to forget them, and then they land on someone else's page.
I also would not use those suggestions (probably from GoDaddy?), as they all sound weird.
So what can you do?
1. You can choose a different domain.
As for a personal webpage of an actor/actress it doesn't necessarily have to be a .com
There are still .net .org .name
2. You can add a word behind your name
like HeatherGrahamacting.com
HeatherGrahamactress.com
3.
Adding a number, like JohnGielgud3.com
Numbers are used (even though in the Roman system) on imdb, and easier to remember than a "soundless" hyphen.