we decided that Flanigan really doesn't have that great a range -- he's essentially the same guy in every role -- but that Flanigan's range and the role of John Sheppard were very good fits. There was a lot of overlap. Everything that Sheppard needed to do, Flanigan could do. Or near enough. And that was good enough. This stuff ain't Shakespeare.

I was going to post but you hit exactly what I was going to say right on the head. JF doesn't have as much experience in film work as DH does, so maybe hasn't honed his acting as well, but -- it doesn't matter. JF is perfect as Sheppard and vice versa, so it *works*. I kinda love it.