And we'd like to think that in the spirit of the zombie horde, we can be welcoming of all creeds.
Are zombies re-animated corpses? Or do humans infected with case of cannibalistic munchies count too? Why split hairs, we say. Anyone who gate-keeps what 'counts' as the walking dead is to be regarded with the utmost suspicion and certainly not allowed within the guarded walls of your gang's well-armed apocalypse bunker. It helps that zombies, as a concept, are quite flexible.