Sealed Evil in a Can/Examples

Mythology

 * Pandora Box (though it was originally once described the pithos named "Pandora's Jar"): Is no doubt the most famous example, it held many evil spirits that were the cause of all the bad things that happened in the world.

Literature

 * Morgoth (Middle-earth series): Was cast by the Valar through the Door of Night and thus trapped in the Timeless Void, binding him in a great chain, Angainor. According to the prophecy Dagor Dagorath, Morgoth will learn how to break the Door of Night so he can escape the void, and thus initiate the Apocalypse.

Film

 * Ivan Ooze: He was put in an egg-shaped prison by a group similar to the Power Rangers for 6000 years, up until the said prison unearthed by construction workers.
 * The Goosebumps Monsters: Since R.L. Stine wrote them out of the pages, they can be put back in the Manuscripts, but only when they remain locked.
 * Imhotep: Was sealed away in his sarcophagus so that nobody can release him for he would arise as an undead mummy monster. In 1999 remake, he was sealed due to the curse of Hom Dai he subject to would turned into transcended, unholy mummy with immense powers.
 * King Ghidorah (MonsterVerse series): Was buried in Antarctica in a location dubbed the "Wall of Serpents".


 * 4 Morganians (Disney's The Sorcerer's Apprentice) in the world were imprisoned inside the enchanted nesting doll known as The Grimhold.

Anime/Manga

 * Father: Originally trapped in a flask, this Dwarf sought nothing but ultimate knowledge and perfection.

Cartoons

 * The Evil Entity: Put in a Crystal Sarcophagus by the good Annunakki until a young group would set it free.
 * The Nightmare King: King Morpheus defeated the Nightmare King by using the Royal Specter and imprisoned him behind a large door in an underground cavern beneath Sumberland, and he warned Nemo not to open the door with the dragon symbol, which was that very door.
 * Discord: Princess Celestia and Princess Luna used the elements of harmony to turn Discord into stone, and he remained that way for 1000 years.
 * The Evil Spirit: trapped inside the book.
 * Malchior: imprisoned in the book.
 * The Evil Manta: Trapped in a volcano centuries before the events of the Little Mermaid by the ancient Merpeople.
 * Magica De Spell: Imprisoned in Scrooge's number one dime after he deflected Magica's imprisonment spell.
 * Zeebad: Imprisoned in the magic roundabout carousel 10,000 years ago by his good twin Zebedee to stop him from freezing the world with his powers.
 * Jafar: Imprisoned into his own magic Lamp after Aladdin tricked him into wishing to become a genie.