Sarah is the diva of Kaleido Stage as well as the building manager for the dorms where everyone lives. Many want Sarah to sign on a record label because she is so gifted in singing, but she stays true to Kaleido Stage. She is an avid fan of martial arts, and frequently proposes bizarre alternative methods to help Sora achieve her objectives.

Sarah is well acquainted with Kalos and has been with the Stage from the beginning, when she and Kalos were performing on the streets with another friend. This friend, Andy, returns once to try to persuade Sarah to leave Kaleido Stage with offering her a singing career, but she refuses.

In the English dub, Sarah has a heavy British accent.