This is a list of characters with articles or unnamed characters entries who were antagonists during Day 3. The major antagonists of Day 3 were either attempting to sell or to use the Cordilla virus. For the first half of the day, Ramon Salazar's drug syndicate attempted to purchase the virus from the broker Michael Amador; for the second half, bio-terrorist Stephen Saunders and his couriers threatened America with it using weaponized containers.