OVA
Description
Mia Guillem, originating from the Netherlands, joined Kaleido Stage as a performer and initially rejected Sora Naegino’s recruitment alongside Anna Heart, perceiving unfair advantages in Sora’s selection. Witnessing Sora’s determination during the Golden Phoenix challenge shifted Mia’s stance, leading her to become one of Sora’s closest friends and supporters. Her athletic specialty centered on trampoline work, with performances deeply influenced by concern for her frequently ill grandmother, her biggest fan.

Mia demonstrated early organizational and creative skills, conceptualizing group maneuvers like the triple jump during Cinderella rehearsals. Kalos Eidos recognized her writing talent, enabling her to create "Mia’s Room" for the Kaleido Stage website, which evolved into scriptwriting for productions including Freedom, Dracula, and Arabian Nights. Her creative process sometimes involved eureka moments sparked by personal experiences, such as developing Freedom’s storyline after encouragement about perseverance. When Yuri Killian took over Kaleido Stage, Mia initiated Freedom Lights by emailing performers like Rosetta Passel to continue productions.

In the second season, Mia transitioned fully into a scriptwriter role for Kaleido Stage, facing persistent challenges from Leon Oswald’s frequent demands for script changes to accommodate May Wong, which occasionally disrupted Sora’s performances. Her collaboration with Cathy Taymor, Layla Hamilton’s Broadway partner, proved vital; their outings, such as observing swans, directly inspired script enhancements like integrating The Angel’s Maneuver into Swan Lake. During this performance, Mia joined the cast onstage when Sora’s presence drew everyone into the act.

Mia maintained distinct relationships: she acted as the "straight man" to Anna Heart’s comedic attempts, routinely rejecting Anna’s requests to insert humor into performances, though this softened during Swan Lake. She supported Rosetta Passel’s integration into Freedom Lights and later assisted Sora in training Rosetta. Her initial dislike for May Wong lessened after Leon’s accident and May’s personality shift. With Marion Benigni, Mia shared interests in romance and collaborated on matchmaking efforts involving Ken Robbins.

Across OVAs, Mia contributed to productions like The Princess That Never Smiled, drawing inspiration from a painting resembling Rosetta and Fool. In Kaleido Star: It’s Good! Goood!!, she appeared in a super deformed style segment. Later continuity revealed her marriage to Jean.