A lot of those people are vocal with their campaign contributions - but either way, there are plenty more. Sure it's less than half, but the fact remains that there are lots, while the perception is that there are none. I should have used the word Celebrity, not actor - if you use the word celebrity, there are hundreds and hundreds to choose from. Try googling Republican Celebrities or Conservative Celebrities and you'll find lots of websites with long long lists of people.
And it is very easy to classify Ron Silver as a Republican - he's a neo-conservative and is about as hawkish as they come. Anyway, I've made my point, you've made yours, we should probably get off this train now.