Artstyle in the show adventure time a boy with glasses and hanging out with Mars

Artstyle in the show adventure time a boy with glasses and hanging out with Marshall Lee the vampire king in adventure time Marshall Lee has a slim body, an average height, black hair, and light gray skin. He has a matching permanent bite mark like Marceline's which shows he is a vampire. In Fionna and Cake and Bad , he is seen wearing a red plaid shirt with gray stripes, dark blue jeans, and brownish-red and white sneakers. Like Marceline, his physical appearance is that of a typical late teenager or a young adult, but he appears to be a little shorter than her. Also like Marceline, he looks about the age of 18.