Down: Not every character works

The actors may be wonderful, but some of the characters just don’t work. Returning to Dinah Medani, it was clear from the start that she would never stop in her quest for justice. However, by the time everything ends, she saves the terrorist who murdered Ahmad Zubair.

 Sarah Lieberman is another weak link. Her actions make no sense, particularly during her tipsy moment with Castle and during her interactions with her son.

Ben Barnes' Billy Russo is another character the writers should have spent a bit more time developing. Barnes does a great job of making us both like and hate his character, but there’s no mystery to him, even as his identity as a villain was set up to be a plot twist.