How could the producer only create 6 episodes for 1 season? This is one of the best zombie film in the world! Although in Korean, the series deserve to supersede any Hollywood zombie series. There's no cliche or cheesy moments. Everyone is there as they should be. Not every one has strong character, but the protagonist and antagonist surely fits the profile.
Don't believe the haters who doesn't really know the true meaning of character building, because they prefer to have a bland and uniform Asian character. That is actually an insult to the entire Korean film industry. So just believe me when I say that the characters in the series really behave and do as natural as they should be.
From episode 1 to episode 6, the series really draws you in and is very intriguing. You can really feel the suspense and horror. Not too much and not too few. They happen at the right moment and at the right pace in logical sequence as how the story should progress. So it's actually very natural. Thus it is something that very few Hollywood film did in decades.
In short amazing job to the producers + directors + actors who made this series into a believable Kingdom.