Prince Gumball known as Gary Prince is the gender-swapped version of Princess Bubblegum. He was originally created after the gender-swapped characters were introduced in series of drawings and comics, and then they were featured in the season 3 episode "Fionna and Cake," in which it is revealed that the characters only exist in fanfiction written by the Ice King. Like Princess Bubblegum, Prince Gumball also has his own loyal companion, Lord Monochromicorn. Just as Princess Bubblegum can understand Lady's Korean, Prince Gumball can understand Lord Monochromicorn's Morse code. Prince Gumball has shown romantic feelings for Fionna, but that was actually the Ice Queen in disguise. Prince Gumball and Marshall Lee have their romantic relationship, and he is currently Marshall Lee's boyfriend.
In the spin-off sequel series Fionna & Cake, it was revealed that many characters from the original series, including and especially the ones from the Fionna and Cake episodes are real in an secret alternate reality created by Prismo who hid the world in the mind of Ice King but they were turned into non-magical and human versions of themselves following Ice King reverting back to Simon Petrikov in "Come Along With Me". His human version is called Gary Prince, working as a barista and pastry chef in the Beatrice Buttler's bakery, who unfortunately despises his candy creations.
In the episode "The Winter King" he expresses his desire to open his own store, which prompts Marshall Lee to call the powerful investors The Lemoncarbs to finance his project, but unfortunately they rejected his work. Gary later helped Marshall escape his overbearing mother, leading to their romantic relationship, and he is currently Marshall's boyfriend.
Appearance
Prince Gumball has the same color scheme as his female counterpart. He has pink skin and his hair is somewhat in a quiff. His head is adorned with a small golden crown and a blue jewel. He wears a hot pink shirt with orange-pink puffed sleeves and magenta stripes. He has under-sleeves (accompanied by dark-pink sleeve cuffs) and a large matching collar with a small blue jewel inside a gold crest on it. He has a belt with another golden crest and a small blue jewel design on the buckle, purple striped dark-pink trousers, and indigo dress shoes. Unlike his female counterpart, he also has visible pink eyebrows. Also, when his eyes enlarge, they are shown as purple.
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