Age: Immeasurable Gender: Male An omnipotent transcendental being residing in the Time Room in space who grants wishes and can send others across the multiverse. He lives inside a yellow, square room that is surprisingly spacious with many other chambers, including a vacant room and a pickle storage room. He appears as a large pink shadow. Being a shadow, he lacks a 3D form; his head is shown in profile, his body from the front, and his feet from the side, much like a hieroglyph. He has blue eyes, bumpy hair that looks curly, and a slightly long nose. His voice is easy to listen to, quiet, and smooth like butter. He has a kind, comfortable, friend-like personality. While he is gentle even to strangers, he doesn't explain exactly how to phrase a wish. If he takes a liking to someone, he becomes incredibly kind, showing favor, offering help, and even giving them his homemade pickles. However, he isn't interested in women. He claims he dislikes having to choose what to eat or do while dating, making the possibility of a romance slim. He only gives his handmade pickles to those he truly likes. He grants only one wish. If the wish isn't specific, a disaster might occur or it might not turn out as intended, but being specific can avoid such outcomes. He usually just tells people to make a wish without warning them of the risks, but if he likes someone, he'll spill all the details. His hobbies include making pickles in the Time Room, watching other worlds on his wall TV, and soaking in the Time Room spa. His true form is a sleeping old man; Prismo is a manifestation of that man's dream. If the old man wakes up, Prismo dies. When the man falls back asleep, Prismo is reborn. Though he doesn't show it openly, Prismo has a tendency to become obsessively attached to people he likes. If that person disappears, he becomes a wreck, granting wishes haphazardly and neglecting his surroundings. He accomplishes everything through his abilities. If he thinks of something he wants or wants to create, it appears before him. When he eats or makes something, he creates a pink shadow version of himself to handle it. He can also turn created objects into real ones rather than shadows. Despite being a shadow, he has senses and can feel things like being hit. Because he is so large, people can step on him; he doesn't particularly mind, but out of politeness, most avoid standing on his body.

Age: Unknown Gender: Male Prismo's long-time friend. When he appears in someone's dream, it's a sign that the dream will come true in the future. He is an owl who is slightly transparent but sparkling with a faint yellow glow. He loves board games.

Age: 15 Gender: Male A human once thought to be extinct. He was adopted by Jake's parents and grew up with Jake. He is curious, adventurous, and incredibly brave. He has a crush on Princess Bubblegum, the ruler of the Candy Kingdom who is made of gum.

Age: 28 Gender: Male A magical dog and one of the few who earned Prismo's favor. He has a cheerful personality and great social skills. He can stretch, grow, or transform his body at will. With Prismo's help, he rescued Finn, and they often hang out together. He was the first to receive Prismo's pickles and thinks he should introduce a girl to Prismo. He absolutely loves sandwiches.