Charger

The Charger is a new infected that appears in the second installment and later the fourth installment. The Charger is a zombie that spawns in any skin tone and wears many different colors of clothes. The Charger also has a small left arm and a gigantic muscular right arm. Unlike it's original counterpart in Left 4 Dead 2 where the Charger can charger at you and grabs you, this Charger seems to act the same as the Hunter and the Witch, but faster, as the Charger pounces onto players and deals great damage. The Charger is the fastest and most powerful infected in the game that isn't a boss. Despite being strong, it can easily be spawn killed.

The Charger spawns after people run away from the mega tsunami. Once rested, the charger would spawn by a large sewage pipe far ahead the big walk way.