The Zombies are minor villains from the adventure computer game King's Quest IV: The Perils of Rosella. They are the undead that prowl the graveyard of Tamir at night.
The Zombies are encountered by Rosella when she is in the graveyard at night. If they touch her she will be killed and turned into a wandering undead. If Rosella has the Scarab, the Zombies will retreat from her and go back to their graves.
It is not possible to beat the game without the scarab, because without the scarab the zombies will easily kill you and the same fate will occur with the mummy in the crypt.