Deities and Cosmic Entities are recurring characters in Adventure Time. They are the most powerful beings in Ooo and beyond, with a vast majority of them being immortal. Their alignment is not specific, many are neutral.
Known Deities and/or Cosmic Entities
The following list of high-level beings uses images and official names.
|GOLB||The Original Being||The dimension between the physical and metaphysical realms||Embodiment of Chaos, disorder and mutation, possibly evil in general.||GOLB attacked Mars at Olympus Mons, because that is where Magic Man planned to install the defense system meant to protect Mars from him.|
|Orgalorg||Gunter, Ice Thing, Destroyer of Worlds, Breaker of Worlds||Earth||Longs to conquer the Solar System||Wanted to consume the Catalyst Comet, but Grob Gob Glob Grod banished it to Earth. As it fell, the gravity compressed it into an inoffensive penguin-like form. It later used the Ice King's crown to become a new being based on the Ice King, his former owner, and Urgence Evergreen, the crown's creator.|
|Grob Gob Glob Grod||Formerly Mars, now orbits Earth||Defended the Solar System before falling into Earth's orbit.||Ruled Mars with Abraham Lincoln and their brother. They lost their body and became floating heads after stopping the supposed Catalyst Comet.|
|Cosmic Owl||Everyone's subconscious||Informs the sleeper that they are in a Premonition dream.|
|Martin Mertens||Martin the Human||Milky Way galaxy||He defends the Solar System.||He is Finn's biological father, who was formerly a human. He became a cosmic entity in "The Comet" when the Catalyst Comet offered him a new form of existence.|
|Catalyst Comets||Various||Milky Way galaxy||Change||See also: Purple Comet|
|Party God||Anywhere a party occurs||Partying||He dated Island Lady for a short time, but she "broke up" with him.|
|Prismo||Old man's dream||Time Room||Wish Master||Prismo is a Wish Master who is the manifestation of an old man's dream.|
|The Lich||The Last Scholar of GOLB, Sweet Pig-Trunks, Sweet P||Earth||He desires to extinguish all life in the universe.||He existed before the beginning of time, elected by the Purple Comet to be the embodiment of evil. He was changed into a large man-child by Finn using Guardian Blood.|
|Death||Dead World, Land of the Dead||A keeper of souls and overseer of the mortality of many living creatures.|
|Life||An entity that can control the seasons, and has power over life and nature.||She is in a romantic relationship with Death.|
|Prismo's Boss||An unseen entity that is in charge of Prismo.||The only other entity known to have power over Prismo is GOLB, so his power must at least rival GOLB's.|
- In The Adventure Time Encyclopædia, Hunson Abadeer said that even he doesn't remember his own origins, as he has existed before time and before everything, when "there were only monsters" like Orgalorg and the Lich, indicating that he might be a Deity, though it hasn't been confirmed in the show whether or not this is true.
- A temporary member of the cosmic entities may include the King of Mars, Abraham Lincoln.