Famine

Famine is an extremely powerful entity, embodying true hunger and desire amongst humans. Famine, also known as the Black Horseman, is affiliated with War, Pestilence and Death. Famine is one of the Four Horsemen of the Apocalypse. Famine is the second oldest. Due to the times and technology, Famine travels in a black Cadillac Escalade which represents his black steed. He manifests physically on Earth as the form of a sickly, old, crippled man.

History
After Famine is triggered by Lucifer's release from the Cage, Lucifer sends several lower-class demons to care for him, attending to his needs, but most importantly, they collect souls and transport them back to Famine so that he can digest them, which is crucial in restoring and replenishing Famine's power and strength, as the times and environment improvements have severely weakened him to the point where he must be in close proximity of his victims in order to infect them.

My Bloody Valentine
Famine arrives crippled, weak and frail, and is bound to a wheelchair, where lower-level demons have been sent by Lucifer to care for Famine's needs due to his state. Subsequently, Famine infects the people in a small region with his influence. A cupid angel arrives and marks peoples hearts, which seemingly elevates their conditions, specifically making them "rabid" for love. Upon investigating the case, Dean and Sam approach Castiel who explains that Famine is close and is being prepared by demons to be restored back to his previous nature so that he can march across the lands with authority and dominion. They travel to a small town restaurant where Castiel feels the presence of a cupid. He traps it telekinetically and demands that it reveals itself, and it eventually complies, appearing in the form of a naked man. The cupid explains that it is just on its appointed rounds and that even in the case of John and Mary Winchester, who fell in love because Michael had some cupid intervene which resulted in their affection for each other, later resulting in the births of Dean and Sam. After receiving confirmation that Famine is indeed behind this, Dean and Castiel prepare to confront the Horseman so that can take his ring. Faced with Sam's current craving for demon blood due to Famine's power, they leave him at the hotel room. While in the Impala, Castiel explains to Dean that Famine's influence had even affected his own vessel, Jimmy Novak, amplifying his craving for red meat. Castiel teleports inside and tries to get the ring but falls under Famine's influence and remains eating food, which forces Dean to take action.

Back at the hotel, two demons release Sam and prepare to fight but Sam, unable to resist, drinks their blood and leaves to find Dean. While conversing with the Black Horseman, Dean is told by Famine that he is empty inside which is the reason why he remains unaffected by his influence. Sam arrives and Famine tells him to drink the blood of his demons but he refuses, instead he exorcises them, and Famine sucks their essences in and gains more power. Sam indirectly impacts the Horseman by exorcising them. They then remove Famine's ring.

Back at Bobby's panic room, they detox Sam from demon blood. Dean steps outside and pleads for God to help him.

Hammer of the Gods
It is revealed that Famine's ring, along with the other three rings belonging to the Horsemen, can open Lucifer's Cage so that he can be re-imprisoned.

The Devil You Know
A Horsemen loyalist named Brady tells Dean that Famine and War are no longer currently active due to the loss of their rings. He admits that placing the rings back on them would not make any difference as they are withered husks.

Personality
At first, Famine appears weakened and barely conscious. When he is brought to a dinner to feed on the human souls within. Famine becomes more active in the dinner has the humans within fall under his influance and watches with a smile as they kill themselves under his influence. Later when a demon minion returns empty handed Famine is at first pleased to learn that Sam has arrived in town. When the minion reveals he lost the soul in a scuffle Famine becomes very angry and distressed; raving that he is hungry. When the demon says he will find him another soul Famine says he is hungry right now and rips the demon from its host eating it on the spot.

Later after having apparently fed he is calmer and stronger when he encounters Dean who his minions have captured. Famine has a level of distaste for angels calling Castiel Dean's dog. He reveals that humanity is easy for him to influence and finds them easy to bend to his will explaining to Dean that hunger is in a person's soul so humans are always hungry. After reading Dean he reveals to the brother with glee that he is dead inside.

Powers

 * Indestructible –Famine himself, as a Horseman, cannot be physically destroyed. Famine, like the other two riders, requires a colored ring that respectively channels his essential core abilities. Although in the case of Death, he doesn't appear to be weakened when he removes his ring.
 * Immortality –Famine cannot die by any means. Ironically enough, he along with the other three riders, seem to age over time.
 * Teleportation – Due to his weakened state, he's quite limited to where he can go.
 * Insatiable hunger - This horseman has an insatiable appetite as he embodies extreme hunger itself, and he sustains himself by devouring the souls of his victims. However, he is capable of eating demon souls, as well, though he seems to prefer the souls of those influenced by his powers.
 * Influencing Hunger - Because of his weakened state, Famine cannot influence people over great distances and must be near an individual to infect them with his powers. As he strengthens himelf his influence begins to spread further. The closer someone is to Famine, the more extreme their symptoms become. For example, a whole diner of people were infected by him only being in the room for a few seconds, and Castiel's vessel's hunger for red meat made him so hungry that he started to eat raw meat when too close to Famine. It is unknown if these powers can infect demons, but none of his servants seemed to be affected by any kind of hunger, however as they were helping him, its possible he was perpously excluding them from his influence. Its stated by Castel that once infected by Famine's influence, removing them from it would have no effect, the hunger would just follow them.
 * Exorcism- Famine was able to exorcise a demon from its host, with a gesture of his hand, so he could devour it.

Family

 * War (Brother)
 * Pestilence (Brother)
 * Death (Brother)

Trivia

 * Famine's weakened appearance in comparison to War may be due to the fact that famine is not as major problem in the world as it was before technological advancements in Agriculture, so Famine does not have enough natural energy to sustain himself yet.
 * Although it is said that Famine was the third Horseman to rise after War and Pestilence and before Death, in Supernatural it is unknown when he rises, and he appears before Pestilence and Death.
 * Famine wears a silver ring with a black stone

Appearances

 * "My Bloody Valentine"
 * "Hammer of the Gods" (through a flashback)
 * "The Devil You Know" (mentioned by Brady)