Carmen Argenziano is a pretty good actor. I've seen him as Jacob Carter / Selmac in Stargate SG-1 and I think he does a very good job as that character. It must be hard to play an alien and play multiple peronalities in one body, but he does it well. I'm surprised he doesn't have a bigger role. He's been a guest star in a lot of shows, but he's never had a good major role. I guess it's just because there are no major roles out there for older guys...well, there are. I've also seen him in House and I think he did great on that show. He demands a presense on screen and delivers his lines well. He's a good actor, better than many but still not anything too special.
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