The Zoo Crew was initially six members, but in their twelfth issue they met a new superhero, Little Cheese, the Micro Mouse. A size changing rodent in the tradition of diminutive heroes such as Doll Man and the Atom, Chester Cheese was also a teenager. This further distinguished him from the other Zoo Crewers, who were all 30-something adults.
Little Cheese's origin is given doses of Batman and Spider-Man by having him be the orphaned son of a scientist who was rubbed out by the local organized crime gang. Initially seeking revenge against his father's killers, Little Cheese is helped by the Zoo Crew to bring them to justice instead.
Little Cheese doesn't join the Zoo Crew in his premiere issue. Hot headed and impatient, he has too many personal issues to deal with. The issue ends with him by his father's graveside making strides towards his new life.
It would not be until the Zoo Crew's final issue that Little Cheese would be seen again, finally joining the team after a rousing adventure against the dimension hopping Gorilla Grodd!
