Farmworld Marceline

Farmworld Marceline is an alternate version of Marceline, who has protected Simon Petrikov's dead body for over 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 bomb goes off and she falls within its liquid, her final act being an attempt to save Jake for Finn.

Appearance
Unlike regular Marceline, she is extremely old. 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, who's eyes are just dots. She sports a brown coat, and hat, along with long black hair. In the Farmworld, Marceline is half demon, allowing her to live longer but still age. This may have also allowed her to hear the words of the skeleton of Simon.

Trivia

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