Man, it's been a long time since we've had one of these threads.
I'd say Katee Sackhoff had the physicality, presence, and intense stare to do it. Plus she can at least fake her way through smoking a cigar.
Lucy Lawless has a rather Ashar-like face, but is sort of a joke half the time now. And Demi Moore, in GJ Jane, would about do it. Except she's kind of off...but then again, so's Ashar.