In the novel, Al Capone Does My Shirts, it introduces Moose Flanagan, the book's main character. Moose shows many characteristics that help the reader understand him throughout the story.

Moose Flanagan is a teenager with brown hair and eyes and who is tall for his age. In the book, We learn that Moose loves baseball due to the fact that he plays it with his friend whenever he can. When Moose's mother assigns Moose to babysit his sister, Nat, he is annoyed at first, but later it showed that he is always thinking about his sister, which tells us that he is a responsible and caring person. The last personality about Moose is that he is an honest person for how he tried to tell his mom, who is trying to put Nat in a program that helps children