According to the internet (Wiki and many films etc) vampires cast a shadow (See the movie "Shadow of the Vampire) but their reflections are not to be seen in a mirror.
According to legend it is the silver used on the backs of glass to create a mirror which give the vampire the problem although Hollywood have, over the years, exaggerated this to include all reflective surfaces.
Modern mirrors do not use silver as the backing although the process is still called "silvering"
Zombies deffo flesh! All be it rotting flesh.
Shall we change the subject?