Officer Mac is one of the officers in the Greenpoint Police Department, assigned to the Tenement District to replace Officer McManus. Instructed by his supervisor, Inspector Malone to get the neighborhood kids to trust him, he performs a goofy dance to make a baby laugh and befriend Mary Kornman. He also encourages the Rascals to become a Junior Police Squad and help clean up the Tenement District. He helps defend the kids from McManus after the irate former officer pushes Mickey Daniels down into the street.
- A Quiet Street (not by name)
- Forgotten Babies (not by name)
- Official Officers
- The Buccaneers (not by name)