Chocolate Bar Guy is one of the suspects in the episode "Mystery Train." He is part of the larger group of Candy People who were simultaneously "murdered" in the boxcar. He had a travel dictionary which Finn used as a clue because it had the words "rid," "guests," and "at once" circled on separate pages. He is a three-pieced chocolate bar and appears to be an athlete of some sort.
Two other chocolate bars also appear in "Slumber Party Panic," but with different designs. The first one's eyes are a tad larger and is wearing high-up blue polka-dotted pants and a blue party hat. At one point, the Snail is seen sitting on his head. The other one was seen when everyone was cheering for the slumber party. His wrapper is up to his neck.
In "Ricardio the Heart Guy," he appears in the crowd dancing.
In "Too Young," a candy person uses him like a board to slide down some stairs.
In "You Made Me," he is in the crowd chanting "No, no, we won't go!"
He is also briefly mentioned in the "Candy Kingdom Song."
- He may be based on the science discovery, that implies that dark chocolate boosts fitness.