Bartram "Bar Bar" is the pet mule of Farmworld Finn. He appears in the Season 5 premiere episodes "Finn the Human" and "Jake the Dog." During most of the episodes, Finn calls him "Bar Bar." Bartram can apparently climb trees, as Finn finds him high up on a branch.

Finn's mom tells Finn to sell Bartram to the Destiny Gang so that they would stop threatening Finn's father, but Finn does not let that happen. Later, Finn uses Bartram as means to transport his mother, father, and his baby brother away from him because he thinks they are in danger from his newfound Ice Powers. It is unknown what happened to them after this because, shortly afterwards, the universe was un-wished by Jake from the original timeline. 


Bartram is a normal, brown mule with two long ears and dot eyes. He is often mistaken as a donkey.


  • Jake also believed that Bartram was his Farmworld counterpart.
    • Some can speculate that Bartram is the counterpart of BMO since he lives with Finn and Finn seems to care about him almost as much as Jake.
  • He seems to have amazing climbing ability as he is seen up a tree to escape from be flogged (sold).