Importantly but not necessarily the most fun, Princess Bubblegum (aka PB, aka Bonnibel “Bonnie” Bubblegum) voiced by Hynden Walch is said to be “Adventure Time”‘s third lead role after Finn and Jake. However, as the ruler of the Candy Kingdom, she’s not always the most interesting character in Ooo. The show even addresses PB’s penchant for maintaining order and control at the expense of fun in episodes like “Hot Diggity Doom” where she loses the election to King Ooo. , or “Varmints,” where she and Marceline talk about how often she’s been. consumed by the need to control everything. Her love (and talent) for science also contributes to this tough character, as science has to be exact. So we see in “Wizards Only, Fools” that Princess Bubblegum has no love for more abstract magical art.
However, she has a cheerful side. As we see in “Varmints” and “The Pajama War”, she can let loose and walk away from the candy vendors, even if they require supervision at all times. Her romance with Marceline is one of the best aspects of the series, both in terms of the hilarious jokes between the two as well as the emotional impact their arcs have over episodes like “What Was” Missing”, “The Sky Witch”, and again “The Vandal.”
https://www.looper.com/803890/15-most-popular-adventure-time-characters-ranked-worst-to-best/ The 15 most popular characters in adventure time ranked as the worst