Hewie, Dewey, Louie, and Scrooge. :)
Those are all cute names, Cortney and would work if they are all males.
Remember Josie and the Pussycats, the cartoon that featured an all-girl pop music band that toured the world with their entourage, getting mixed up in strange adventures, spy capers, and mysteries? On the small-screen, the group consisted of level-headed lead singer and guitarist Josie McCoy, intelligent tambourinist Valerie Brown, and air-headed blonde drummer Melody Valentine. Other characters included their cowardly manager Alexander Cabot III, his conniving sister Alexandra, her cat Sebastian, and muscular roadie Alan M.Mayberry. That may give Brian some ideas.