Please don’t use the ‘Z’ word. Our undead friends find the word offensive and may in fact try to eat you if they hear you say it.
Instead, you may use the words ‘walking dead’, ‘walker’, ‘undead’, ‘life-force challenged’, or simply ‘the-guy-who-was-formally-Bill’ or whatever name that former-person had before their untimely death and subsequent unholy reanimation.
Lee Byway gives us Shaun (of Shaun of the Dead) in a minimalistic design.