Fionna The Human Girl!

Fionna (previously named Fiona; possible full title Fionna The Human Girl) is the female counterpart of Finn, created by series designer Natasha Allegri. She is usually seen in the company of her own stretchy companion, Cake, who is the gender and species-swapped version of Jake. Fionna's enemy is the gender-swapped version of Ice King, the Ice Queen. It was revealed on April 6, 2011 that the working title of the sixth episode in season three is "Adventure Time with Fionna and Cake."