Moonlight Dwelling

Acheri: A demon that is in the guise of a child. It is dispelled by iron. Ava's demon of choice to summon would be this one.

Azazel: So far he seems to be the only demon that has yellow eyes. He is more commonly known as Yellow Eyes. In 1973 he went out doing deals not for souls but for children. He ends up killing the Campbells along with John which results in Mary making a deal to save John's life. Unlike the other demons that were once human it is implied that he could have been a fallen angel as suggested by his name. He has a son and daughter. Dean killed him with the Colt

Unnamed Son: His name is never revealed and he's taken out by Dean with the Colt so it's unlikely that Azazel's son's name will ever be revealed.

Unnamed Daughter: She possessed Meg and later possessed Sam. She was never actually killed so she could always pay another visit in another body. She was known as Meg Masters the girl whose body she wore for a year until she was exorcised from the body but sadly the body was broken beyond repair which resulted in a return visit as a Witness from the real Meg Masters courtesy of Lilith.

Casey: Another demon that escape the Devil's Gate. She ended up in Elizabethville, Ohio with her lover Father Gil. She believes in a higher or more accurately lower power of Lucifer. She was perfectly willing to follow Sam. She ends up getting killed by Sam with the Colt.

Crossroads Demon: This demon seems to prefer possessing the body of a girl and seals deals with a kiss. Dean tricked her into breaking Evan's deal one of a bunch of people who made deals to sell their souls. When she wouldn't break Dean's deal for Sam he shot her with the Colt.

Father Gil: He escaped the Devil's Trap when the door was opened. He was lovers with Casey for centuries. He was killed by Sam with the Colt even though she was begging him not to kill Dean.

Lilith: She's a bigwig demon that prefers to take the bodies of little girls. She is also the one that holds all the demon deals. She is quite powerful with her magic hand thingie that causes everything to go white and end in a major blast. Her eyes turn white when she does her thing although her eyes go red when she makes a deal with Bela. She is considered a rising power which might explain the eye color change. Her powers don't work on Sam since he has some weird demonic immunity since he was also immune to the demon virus. She can also knock out demons possessing other bodies like she did with Ruby. So it is possible that the current Ruby is actually possessed by Lilith. Right now she is breaking the seals in order to release Lucifer.

Lucifer: He is being held behind sixty-six seals which Lilith is breaking.

Ruby: Her real name is unknown since Ruby is not very likely to be it. She was the demon that revealed that all the demons she knew were once human. Unlike the others she seems to have retained some of her humanity. She was human when the plague was big and she was also a witch. Obviously she ended up making a deal which resulted in a one way ticket to Hell. She is one of the demons that escaped when Jake opened the Devil's Gate. She is helping Sam but it is unknown what her true motives are.