Clicker (Earth-9471)

Clickers are humans infected by the Chemical A0-3959X.91 – 15, an ancient pathogen created by the forerunners to create the xenomorphs and repairing cells, of which was utilized by the Weyland-Yutani Corporation with intents of military use. Infected individuals have limited use of their brains, and they only respond to basic instinctive impulses, such as the need for food.