Kate, Edith and Isabel are the leaders of General Stanley's wards, with Edith serving as the leader among the three. Of the three, Kate and Edith have solos, although you could break-up their solos to provide Isabel with a solo as well. These three should be good singers, good dancers, and reasonable actresses. Traditionally, Edith wears glasses and is more bookish, Kate is aggressive and tomboyish, while Isabel is younger and more naïve. However, these three roles are open to interpretation. Consider having your actresses create their own character types as long as the characters are specific and can be sustained throughout the entire production. These are great roles for actresses you are nurturing for future lead parts.