Let's start with the very basics, the stars of the show, the unsung heroes without whom the entire series would be a colossal waste of time. The living, walking dead. The Walkers are very similar in both versions of TWD, with rotting flesh and ragged clothing being two of the key features, of course. In the show, some of the older, more world-worn zombies actually have dark pupils, whereas 'fresh' zombies commonly have pale or yellow/gold pupils.