The Last of Us and The Last of Us Part II are video games stuffed with action, gunfire, and fungal zombies that make click clack noises to signal they're about to eat you. But that's not what makes the franchise stick in my brain. What makes it stick in my brain are the incredible characters -- especially Ellie and Joel -- and the incredible performances -- especially from Ashley Johnson and Troy Baker. Now that we know the world of The Last of Us is moving to HBO as a show under Chernobyl showrunner Craig Mazin's vision, one big question …