Quantico
Most people seemed surprised that Liam O'Connor played by Josh Hopkins was the terrorist at the end of Quantico season 1. Blind to bad behavior. I wasn't terribly surprised because his character was a drunk (Miranda commented in the pilot episode if Lam fell asleep in a bar, and he got drunk in Guilty ). Natalie's dialog in Guilty also convinced me when she tells Liam, "Sir, with respect, when the people you trust are all on one side, and you're the only one on other side. What does that make you?"