The Darkness (The Darkness)

Known only as The Darkness, the beast serves as the eponymous force of The Darkness series. It bonds with the protagonist Jackie Estacado and operates as a driving force in its own personal war with all life.

Origin
According to the series' lore, The Darkness was part of the void that existed before God's light led to Creation. The Darkness became enraged and disgusted with the new lives that formed and decided to infect various male human hosts throughout the ages. It eventually comes across the Estacado line when it bonds with Anthony Estacado during World War I.

The Darkness (2007)
The Darkness attaches itself to Jackie Estacado's body on his twenty-first birthday after Jackie escapes Paulie's betrayal and attempt on his life. Speaking to him through a dark voice, The Darkness manifests as twin shadowy serpents that also provide him with weaponry and offenses. True to its form, The Darkness is harmed by lights, which prompts Jackie to destroy virtually every light source they encounter in order to keep The Darkness strong. The Darkness feeds on the hearts of Jackie's slain enemies and can summon little beings called Darklings that serve as its minions.

Throughout the game, The Darkness drives Jackie to kill and taunts him with the knowledge that it is trying to make Jackie its puppet. This is particularly noted in its Moral Event Horizon-crossing action when it prevents Jackie from saving his girlfriend Jenny from being shot dead by Paulie in revenge. Following this, The Darkness periodically taunts Jackie about Jenny's death while further stating that Jackie is its slave.