Left4Dead411
"Randdalf was searching within the game's .vpk files under materials/vgui and found concept arts of every boss infected in the game, including some never seen before which are pictured below. The first is the familiar Witch. The second is a mysterious boss called the 'Screamer'.
Again we have no idea if this was a scrapped or not yet implemented boss, but maybe we'll get more information in the developer commentaries."
30°
10°
10°
10°
10°
Ad 
10°
