In the game of Left 4 Dead 2, the are 11 types of zombies, each one has their special characteristics and attack style.
These zombies are the special "boss" zombies in each level:
-Tank
-Charger
-Jockey
-Spitter
-Hunter
-Boomer
-Smoker
-Witch
These zombies are the uncommon infected that appear only in some levels:
-Zombies in riot gear(in The Parish, as horde control, but became infected)
-Zombies in hazmat suits(in Dead Center, as CEDA Evacuation crew, but became infected)
The rest of the zombies are the common infected.
*Due to reasons that may include health risks and violence, no pictures of zombies will be posted.