Anyone who gets resurrected by Curtis (Misfits) will have a craving for eating flesh whenever its a human...
...or an animal such as a cat.
Grandfather (Codename: Kids Next Door) can transform anyone he touches into zombies.
White Walkers (Game of Thrones) can reanimate the dead to do their bidding.
The Black Lantern Corps (DC Comics) is controlled by and in turn zombified by Nekron, the embodiment of the lifeless void. Such zombification can include even those who are alive, but have been resurrected.
After killing them, Halloween (Marchen Awakens Romance) can call people from the dead and force them to fight for him.
Zing Zom-Bone (Xiaolin Showdown) can turn anyone into a mindless zombie
Jiang shi (Kung Fu Panda: Legends of Awesomeness)
Energy Vampires (Lifeforce) are a shapeshifting alien species that can drain energy from normal living beings...
...turning them into mindless, living corpses...
...which can also suck energy from other humans.
Anyone that touches enough of Giselle Gewelle's (Bleach) blood becomes a zombie under her control.