You may not have caught up yet with fast-paced, Canadian sci-fi series about clones that airs on BBC America in the United States. But you've probably heard about its star Tatiana Maslany, who is tasked with playing a sextet of different characters, each with their own unique mannerisms, personalities and skills. From an upper-middle class soccer mom to a trained assassin, Maslany gives not one mesmerizing performance but six – sometimes playing complex scenes against numerous versions of herself. (And we haven't even mentioned Jordan Gavaris, who nails the sidekick/guy Friday role.) While the show is steeped in science fiction, there's nothing supernatural about it – the characters are grounded in reality, which makes it all the more engaging.