What are all the zombies in L4D?

There are the:

1. Common Infected- Fast, but easy to kill solo.
2. Tanks- Slow but powerful, requires teamwork to tackle.
3. Hunters- Quick and can pounce on survivors.
4. Boomers- Slow and fat but their vomit attracts the Horde.
5. Witches- No threat unless disturbed and while at leastincapacitate you with one hit.
6. Smokers- Stays hidden and snares survivors with it's tongue from a distance.