Finn Mertens, AKA Finn the Human, often appears alongside his brother Jake the Dog. Finn was adopted by Jake's parents Joshua and Margaret as an infant, believing him to be the only human left in Ooo after the Great Mushroom War. He grew up into a rough-an...

Jake acts as a confident mentor to his energetic adopted brother Finn the Human, though he tends to give somewhat questionable advice. He is quite skilled at playing the viola. Jake was about to go do something super- important, but as usual he got distrac...

Princess Bubblegum rules the Candy Kingdom. She is good friends with Finn the Human and Jake the Dog. She's brilliant, having created the various devices including an invisibility cloak and hologram emitters. Bubblegum is skeptical of magic, refusing to ac...

Marceline is a fun-loving musician who plays an electric bass she made from her family's heirloom battle-axe, and is also a 1000-year-old vampire. She shares a bond with Simon Petrikov, who took care of her as a child in the aftermath of the Great Mushroom...