Mr. Cupcake is a character who debuts in "Slumber Party Panic" and makes minor appearances in other episodes, including "The Enchiridion!" and "Evicted!," and also in the title sequence. He is one of the Candy People, and lives in the Candy Kingdom. In "Slumber Party Panic," Chocoberry dares him to take off his wrapper, revealing that he is chocolate, and no one seemed to know that he was chocolate. He is most likely friends with Finn and Jake, because he was at their party in "Evicted!" In the episode "Video Makers," Mr. Cupcake is asked by Jake to play the role of "Todd Johnson" in the movie he and Finn were making. He is cast opposite of Lady Rainicorn, who he starts to flex in front of. When Jake voices his disapproval, he and Mr. Cupcake get into a physical confrontation. He appears once again in "Hug Wolf" as one of the candy people who were hugged by Finn. As of June 7, there is a Mr. Cupcake cut-out on the official site. Mr. Cupcake also appears in "You Made Me" when Princess Bubblegum calls for a Candy Kingdom meeting. She asks him if he would live with Lemongrab, resulting in Mr. Cupcake breaking his own arm instead of living with Lemongrab.
Mr. Cupcake appears to be physically fit. He has tiny white eyes, a brown mustache, a pink nose, orange arms and legs, and brown eyebrows. He's covered with vanilla frosting and has a few blue sprinkles on top of him. He wears only a blue foil wrapper, which covers his chocolate body.
- "Slumber Party Panic" (debut)
- "The Enchiridion!"
- "Ricardio the Heart Guy"
- "What Have You Done?"
- "Mystery Train"
- "Video Makers"
- "Fionna and Cake" (gender-swapped as Ms. Cupcake)
- "No One Can Hear You" (unofficial)
- "Hug Wolf"
- "You Made Me"
- "All the Little People" (as a toy)
- "A Glitch is a Glitch"
- "The Suitor"
- "Time Sandwich"
- "We Fixed a Truck"
- "Root Beer Guy"
- "Lemonhope Part 1" (as a real cupcake)
- "The Prince Who Wanted Everything" (gender-swapped as Ms. Cupcake)
- "Be Sweet"
- "Hot Diggity Doom"
- "The Dark Cloud"
- "The Music Hole"
- "The Invitation"
- "Hero Heart" (Elemental Transformed)
- "Skyhooks II"
- Usually, Mr. Cupcake wears his wrapper, but in the first part of "Slumber Party Panic" when all the Candy People are walking in to the castle, his wrapper is missing, and one can see in that part that he is indeed chocolate.
- His gender-swapped version, Ms. Cupcake, appears in the "Fionna and Cake" theme song.
- Mr. Cupcake's accent changes between his two speaking roles in "Slumber Party Panic" and "Video Makers."
- Original artwork for Mr. Cupcake had his arms and legs colored blue (similar to the shade of his wrapper), but they were changed to orange prior to the production of the show.
- In "A Glitch is a Glitch," Finn picks up Mr. Cupcake who disappears due to Ice King's glitch. Finn then tries to pick up Sugar Cube, who says "No way, I saw what happened when you picked up Todd." Mr. Cupcake's first name is Todd in the movie in "Video Makers."
- In "Lemonhope Part 1," When Princess Bubblegum opened up the cupcake cabinet, the top right corner had a cupcake that looked exactly like Mr. Cupcake, It had a blue wrapper, white icing, and a mustache.
- Jake is usually thinking that Mr. Cupcake is trying to steal Lady Rainicorn from him and getting mad at him for it. In the episode "Video Makers," he gets in a fight with him for flexing at her when they are making a movie. In the episode "All the Little People," the toys of Jake and Mr. Cupcake get in a fight over the toy Lady Rainicorn, and in the episode "Time Sandwich," Jake thinks about himself dying and Mr. Cupcake stealing Lady Rainicorn from him.
Jake, truth or dare?
Do you prefer chocolate or fudge?
I don't hear her complaining.
I can't, Princess! My arm is broken!
—"You Made Me"