Marshall Lee is the gender-swapped version of Marceline, in a parallel universe to Adventure Time: Finn & Jake, called Adventure Time: Fiona & Cake, where everything is the same, except the characters are gender-bent. He is prince & heir to the realm of the Nightosphere, a land of demons & beings of chaos. He is sarcastic, daring, mischievous, & laid-back, a typical ‘bad boy’. He has black hair, pointed ears, sharp canine teeth, & pale skin, & can drink blood but drinks the color red instead.