Farmworld Marceline

Farmworld Marceline is an alternate version of Marceline, who has protected Simon Petrikov's dead body for 1,000 years, making sure no one stole his crown. Since she never became a vampire, Marceline aged over the past 1,000 years (much slower than humans due to the fact that she is half demon). She is ultimately killed when the Mushroom Bomb goes off and she falls within its liquid, her final act being an attempt to save Finn from the Lich-possessed Jake.

Appearance
Unlike regular Marceline, aging has altered her physical appearance (This may be due to her not being bitten by a vampire in Farmworld). Most of her body is wrinkled, and she is more round than Marceline. Her skin is greyish-blue, and her eyes are fuller than Marceline's, whose eyes are just dots. She sports a brown coat, and hat, along with long black hair. Apparently she has some sort of laser rifle that she uses to attack Farmworld Finn, but it has no effect on him. This is possibly because the gun is broken, or Marceline was too crazy to know it didn't work.

Trivia

 * She is wearing Marceline's boots and pants from "Evicted!"

Quotes
"I know you're not actually talking to me... I'm not crazy!" "One more hit and that baby's gonna burst!" "I warned you, you butt..."