Origin
Teenage human adventurer Fionna lives in the land of Ooo with her best friend Cake. She often raids dungeons, battles the evil Ice Queen, and hangs with Prince Gumball, the vampire king Marshall Lee, and the Flame Prince.
Creation
Created by Natasha Allegri (who also sings the alternate, gender swapped theme song for television), Fionna first appears in Adventure Time With Fionna & Cake #1 released by Boom! Studios.