The Princess of Darkness is the third episode in the Disenchantment series. It premiered on August 17, 2018.
After a night of drinking, Bean, Elfo and Luci go on a joyride using Lady Lingonberry's carriage. This catches the attention of the police using Donkeys as sirens, after jumping over a out of service bridge, they leave Lady Lingonberry to drown. Unable to sleep, Luci encourages Bean to stay up all the next day, so they steal and eat some of Queen Oona's snakeroot which she uses to "sooth her nerves". While under the influence, the trio have a day of mischief, which culminates in them teaming up with a gang of criminals to steal relics from the Royal crypt. The hoodlums abandon Bean, who is then apprehended and taken to the palace the face punishment from her unwitting father. In frustration, King Zog's turns to Sorcerio for a cure to her rebellious ways.
With Bean locked up in her room, Sorcerio convinces the rest of the King's Counsel that Bean is possessed by a demon. Unbeknownst to them, they are being watched via the Oracle Fire by Emperor Cloyd and the Enchantress who now believe their plan has been discovered. In order try to exorcise Bean, Sorcerio uses all 3 available sciences but to no avail. The Counsel finally decide to call on the creepy looking exorcist Big Jo for help, forcing the Enchantress to conjure a spell which makes Luci conceal himself by entering Bean's body to escape his certain fate. Big Jo tries every tool he has to exorcise Luci while the demon tries to play it cool. After Big Joe sprinkles an exorcising star and sets in on fire, Luci regurgitates himself out of her mouth and puts of the fires with his tail, at which point Big Jo captures him inside a bottle along with many captured demons.
When Bean finds out what happened to him, but she initially doesn't care. While spending the day without Luci, Bean and Elfo begin to think about how much they miss him. They ask King Zog and Odval what Big Jo does to the demons. After finding out that he takes them to a volcano and kills them with extreme prejudice, the pair set out to save Luci, running into the gang that betrayed them on the way. Bean and Elfo beat them up and take back her dead families' belongings.
At the volcano, Big Jo drops a female demon and Luci's Lawyer into the lava. He then tries to kill Luci next but, after struggling and taking the exorcist's knife, Bean saves him. Seeing that Elfo is held hostage - and with no other choice - she throws the knife which chops Big Joe's arm off and falls into the lava. Emperor Cloyd and the Enchantress, watching via the Oracle Fire, are impressed at Bean's efforts. After freeing Luci (by crushing the bottle with a rock) Big Jo's carriage with many captured demons rolls away and crashes, freeing the demons. Luci calls this "a happy ending for everyone."
- Abbi Jacobson as Princess Bean
- Eric Andre as Luci / Pendergast
- Nat Faxon as Elfo
- John DiMaggio as King Zøg / Constable
- Tress MacNeille as Queen Oona / Woman 1 / Chief of Police
- David Herman as The Herald / Jerry
- Maurice LaMarche as Odval / Big Jo / Carriage Jacker
- Lucy Montgomery as The Enchantress
- Billy West as Sorcerio
- Jeny Batten as Robber 1
- Rich Fulcher as Emperor Cloyd
- Lauren Tom as Stacianne LeBlatt
- Robin Atkin Downes as (voice)
- Unnamed demon
- Luci's Lawyer
- Paradise Lost: (1667): the title of the episode is a reference to The Prince of Darkness, the name John Milton gave to Satan.
- The Exorcist (1973): Bean's possession by Luci and revolving head are references to this classic supernatural horror movie.
- 7-Eleven: the store which Bean burgles is signed in the Roman numerals for 7 and 11, "VII-XI", and was established in the year 711.
- Highball: the Enchantress and Emperor Cloyd enjoy these alcoholic beverages.
The Simpsons / Futurama
- Big Jo looks visually similar to that of Monty Burns
- In S07E02 of Futurama, "In A Gadda Da Leela", in the scene following the credits featuring Zapp Brannigan, Kif and Richard Nixon's head, Nixon refers to Kif as Reptilicus when he says "Repticilicus, press the thingy." / King Zog refers to Oona as Reptilicus.
- In the same episode, the painted portrait Fry offers to give to Leela before she sets of with Zapp is in the same style as the portraits within the Dreamland castle. (see gallery)
- Title Explained: "The Prince of Darkness" is a term for Satan used by John Milton in his poem Paradise Lost. In this episode it refers to Bean's possession by a demon, Luci, her subsequent exorcism by Big Jo and her rescuing Luci from the volcano, and therefore moving to the dark side.
- Bean's grandmother was called Bee-Baw.
- Lodestone is indeed magnetic, and was the mineral which lead to the discovery of
- "Victims one-thru-nine" include 2 ventriloquist hand-puppets, one of Elfo, and the other of Bean.
- Sorcerio: We can spout crazy theories all day but science suggests a more logical explanation: Bean is possessed by a demon!
- Emperor Cloyd: Oh no! They are onto us!
- Elfo: Well, at least we saved Luci.
- Bean: But we released evil into upon the world...
- Luci: A happy ending for everyone!
- Big Jo: I shall soon cast thee out, demon, with these sacred tools.
- Luci: You're a sacred tool.
- Luci: (Puts out the fire using his tail and snake like togune. He then tries to catch his breath) I saved your life, now I can go back to ruining it--(a mysterious force pulls Luci into a demon-proof bottle Big Jo holds) --GYAH!...
- Big Jo: (puts cork on bottle) Gotcha!
- Luci: Agh! You can't do this, man! I want my lawyer!
- Police Sergeant: (A boy feed a carrot to the police donkey) Please do not feed my vehicle!