Our Little Mermaid takes the classic underwater story and fills it with a scene-stealing sea-witch, a Dame devoted to saving the wails, a lobster with an exhausting number of honorary titles, and a bargain that costs Ariel her voice.

Most groups aren't at either extreme. Five of our scripts sit in the medium cast sweet spot, 10 to 13 principal roles, but they're quite different shows. Here's what makes each one the right fit for a particular kind of company.