4. Orphan Black:
In my opinion the best female protagonist roles in tv shows are: Sarah Lund - Forbrydelsen, Carrie - Homeland and Tatiana Maslany in Orphan Black. Tatiana has done 101% justice to all her characters in this show based on clones. It is an absolutely excellent show (available on Netflix instant watch).
It is intense, disturbing and very different (not just another serial killer story!). I find Gillian Anderson very hot, she performs brilliantly (available on Netflix instant watch).
There's a constant suspense to the plotting that effortlessly weaves in character detail and emotional conflict alongside this political suspense drama. Complicated characters and their inevitable collisions with one another, makes Homeland a pulse-pounding hour of television.