Cheese lives at Uncle Jam's bakery after being rescued as a starving puppy during Anpanman's first patrol. Found alone and crying in the forest by Anpanman, he was nourished with part of Anpanman's head before being brought to the bakery, where Batako named him. His breed remains unspecified, though early artwork depicted him resembling a basset hound.

This small, light brown dog features distinctive rabbit-shaped ears and a dark brown tail tip. Initial manga and picture books showed his ears darker than his body. He occupies a loaf-shaped doghouse outside the bakery, equipped with personal food and water bowls.

Cheese balances comedic antics with fierce loyalty. His dramatic silliness fuels humor, yet he displays bravery by charging into danger to aid Anpanman. Possessing a ravenous appetite, he eats hungrily. While typically helpful with bakery duties and patrols, he occasionally shirks chores due to laziness.

Notably intelligent, he understands human speech and completes tasks comparably to others despite communicating through barks. His exceptional sense of smell enables precise tracking. Practical contributions include assisting with baking, frequently driving the Anpanman-go vehicle, detecting SOS signals early, and aiding Anpanman's head replacements by carrying or tossing fresh heads.

Relationships anchor his world: he shares a close bond with Batako, who helped nurture him post-rescue, and unwavering loyalty to Anpanman. He maintains friendships with characters like Melonpanna and harbors romantic feelings for Rare Cheese.