http://www.avclub.com/articles/orphan-black-flips-the-scifi-script-by-putting-fem,100383/

When people began to take notice of Orphan Black it was because of star Tatiana Maslany, and deservedly so. Maslany’s incredibly nuanced portrayal of at least four different characters per episode is unparalleled for a television drama. She imbues each character with such distinct personalities, gestures, walks, and vulnerabilities that it would be easier to believe the BBC had actually found an incredibly talented set of quadruplet actresses. The show would collapse on itself without such a strong central performance. Worse, it would look like a gimmick. As with every show, Orphan Black’s ambitions can be only as good as the talent bringing them to life. But Maslany’s tour de force isn’t the only reason Orphan Black is so exciting. In fact, the most revolutionary aspect of the series fell into place long before Maslany was attached, and it deserves recognition. …