Shan has a very serious personality. He does not like silly things, such as pranks or games. He lives in an apartment on Apple Street with his brother Mitten.

Mitten is Shan's brother. He has a silly personality and loves to play tricks on Shan. One of Mitten's favorite pastimes is babysitting the neighborhood kids.

Diana is Shan and Mitten's neighbor. She is silly like Mitten, and she adores the color pink.

Shana is a nurse at the Mittensville Hospital. She is serious like Shan, and likes the color white.

Abigail Apple, Marty Muffin, and Happie Comb live in Shan and Mitten's neighborhood. They are best friends and enjoy going on adventures together.

The Bottlecap family also live in Shan and Mitten's neighborhood. The family consists of Mr. and Mrs. Bottlecap, the twins Ben and Catherine, and baby Dianne.