Lucifer

Lucifer is a demonic entity known as the Devil or Satan is the force and the ruler behind the afterlife of Hell, in the Friday the 13th Franchise, he has not made a physical appearance, but has been given hints and names in specific events or when something evil takes place.
Majority blamed for the major tragedies and monstrosities across the world, for ever death and sin a human creates, he is the one humans shift the blame for the actions of many from Freddy Krueger and Jason Voorhees, often likely not even directly the cause is up to debate and interpretation. 
==History==
Biblically, when God created the heavens, earth, and the universe, and before God had ever casted him down from heaven for his rebellion, Lucifer was a archangel within the ranks of heaven until his downfall, and his eternal prison of ruling and watching over the sins of man, but now he is Working behind the scenes, messing around with human affairs directly or indirectly, but has directly manipulating the lives of mortals using his Dark Magic, and by doing so Lucifer would do his work in mysterious ways, and it's unknown if he is the actual Father of Jason Voorhees, or even the same entity that Pamela Voorhees, had described during her rape, as the enigmatic Mr.Voorhees, but this puts into question on if Mr.Voorhees is one of his many victims when making demonic deals or a direct offspring and at this time it unknown and likely won't ever be revealed. 
Lucifer has made influence within both the Friday the 13th/Friday the 13th TV Series as he is capable of creating demonic deals, wishes, and making himself known only whenever he pleases, mostly ever often making contracts with mortals, or having to be summoned by his crazed satanic cult members, as he is a force that is unknown, along with an unknown appearance, he is powerful ancient evil in his own right, but is powerless against those with knowledge of how to rid him of the mortal realm.
He treats hell as a business monopoly, he grants mortals wishes and in return they give him their soul, or numerous other individual souls to fulfill their bargain.
==Friday the 13th Movies==
Never ever making any physical appearance in a single Friday the 13th film but yet it is heavily hinted, implied, and suggested in the films that he is in fact based on the Judeo-Christian version of Lucifer/Satan/the Devil, as if there is a Heaven then there is a Hell, and they mention Jason going and being in hell numerously but he escapes his eternal damnation through the help of Tommy Jarvis, which might give us some explanation how and why a lightning bolt had resurrected a decomposed corpse.
==Friday the 13th Novels==
Described in the back of the Jason Lives Novel: "Jason, the Mysterious boy possessed of the devil's power, has been laid to rest, and the inhabitants of a small new England town shudder with relief. The evil Jason is rotting in his coffin...they think. But his ominous shadow rises again...consumed by a furious and overwhelming compulsion to kill...and kill...and kill...
This is one of the bigger connections that the devil "Might" have a unknown connection to the Voorhees family both prior and after his resurrection from the grave.
==Friday the 13th Series==
One of the antagonist forces throughout the TV series, the Devil is always creating havoc for the protagonists and trying to claim what is his, purposely resurrecting 3 souls into the physical world to try to halt them, and making deals in the original episode.
==Friday the 13th The Game==
In the 2016, Video Game, Friday the 13h: The Game, a new version of Jason was specifically made for backers of the game, and his origins speaks of how he escapes hell after Jason Goes to Hell: The Final Friday, and had fought, beaten, and stripped the Devil's Trident from his palm, indicating that Lucifer has no control or power over the rage of Jason Voorhees, this version is called Savini Jason.
==Powers & Abilities==
*Immortality: Lucifer is ageless by the very definition and likely can't be killed by any mortal means.
*Magic: Lucifer uses dark magic, capable of creating cursed artifacts of immense power and misfortune. 
*Shapeshifting: Lucifer could and can on a physical form or take the form of anyone to interact with the mortal plane. 
*Soul Manipulation: Lucifer can either take souls or resurrect them by using their own-soul.
*Wish Granting: Lucifer can make various amounts of wishes to mortals, but at a costly price.
==Trivia==
*This version of Lucifer IS not related to or connected to Warner Bros. (WB) partner DC Comics, interpretation of Lucifer, where he is known as Lucifer Morningstar.
**This includes any "Comic" adaptations of him as shown when JGTH Jason makes a cameo appearance in a comic with a devil figure.
==References==