The series "Mirmo Zibang!" (also known as "Mirumo de Pon!") features human characters Kaede Minami (Katie), Setsu Yuuki (Dylan), Azumi Hidaka, and Kaoru Matsutake (Kyle), alongside fairy characters Mirumo (Mirmo), Rirumu (Rima), Yashichi (Yatch), and Murumo (Mulu). Supporting roles include Etsumi Kido, Momo Umezono, the Warumo Gang, and fairy classmates. No character named Arthur appears in any seasons, media adaptations, or spin-offs of the series.