Hunson Abadeer

Hunson Abadeer (a.k.a. the Lord of Evil) is Marceline's father and ruler of the Nightosphere.

In "It Came from the Nightosphere," he is freed from the Nightosphere byFinn, who believed that Marceline and her father should be together. Hunson initially shared a shaky parent-to-teen relationship with Marceline that involved an evil rampage throughout Ooo, sucking the souls of many creatures such as the Fuzzy Friends, the Marauders, Hot Dog Princess, numerous ants, most of the penguins in the Ice Kingdom, and some Tree People. He was ultimately defeated by Finn, who released all of the captured souls and sealed the deathless being back into the Nightosphere. Hunson managed to reaffirm his love for Marceline just before leaving. He probably has not been out of the Nightosphere for some time because when he finds out that Marceline turned the family axe into a bass he asks, "Did you turn it into some kind of a lute?"

He appears briefly in "Memory of a Memory," in which he is seen eating his daughter's french fries (which he later says were cold in the episode "It Came From The Nightosphere"). The incident that caused a rift in their relationship and led to Marceline writing her "Fry Song." However, Marceline seems to forgive him, but when Finn kicks him back in the nightosphere, she says the experience was exhausting.

He reappears in "Daddy's Little Monster," trying to trick Marceline into taking over the Nightosphere.

Hunson Abadeer appeared in the episode "All the Little People" as a tiny C-lister.

Hunson Abadeer is confirmed to be a demon, not a vampire.

In Ultima, Hunson Abadeer is  .