I've kind of liked Esai Morales (51 this week) for a while. Which figures, since we're about the same age. I think he first crossed my radar when he did Miami Vice, though I may have been vaguely aware of him from Bad Boys. We saw more of him in La Bamba a few years later.
I know he did stuff after that, but I didn't think much about him until he got involved with the Battlestar Galactica remake. Have to say, he's aging very well.
To see more of Esai, check out his site and Tumblr. Also here for the next couple of days.