In Left 4 Dead, what is the name of the Special Infected that is unplayable in Versus mode?

The special infected that is unplayable in versus mode in Left 4 Dead is called The Witch. The Witch is a highly sensitive and aggressive infected with exceptional strength and the ability to incapacitate survivors with a single attack. It possesses a chilling appearance, often found sobbing softly while sitting or crouching, but will become instantly hostile if disturbed by loud noises or the presence of flashlight beams. Due to its powerful and disruptive nature, The Witch is unavailable for players to control in versus mode, as it would significantly tip the balance in favor of the infected team, ensuring a swift and difficult victory.