Season 5, Episode 46 Rattleballs
First Aired: January 27, 2014
An old gumball robot trains Finn to become a better swordsman and ends up testing Finn's loyalty to Princess Bubblegum.
Rainn Wilson Rattleballs
Cast & Details See all »
- Premiered: April 5, 2010
- Rating: TV-PG
- Premise: The exploits of a boy and his magical dog are chronicled in this cartoon set in the surreal Land of Ooo. (more)