'Adventure Time' trivia and fun facts

Jeremy Shada was chosen to voice Finn after his older brother Zach, who played the character in the pilot, was unable to reprise his role due to his changing voice.

Princess Bubblegum's first name is Bonnibel, but only Marceline calls her by it.

Unlike most animated series, most of the cast get to record their lines together in one room.

As a running gag, in every episode, a small snail is in frame for one shot, waving at viewers.