Naoko Takeuchi
In the stage musicals, ten different actors and an actress have played Mamoru: Mizuki Sano, Yūta Mochizuki, Yuuta Enomoto, Kousei Amano, Hidemasa Edo, Kenji Urai, Yuu Shirota, Gyo Miyamoto, Yūga Yamato, Mikako Ishii and Riona Tatemichi. Creator Naoko Takeuchi has described Sano's portrayal of Mamoru as "a cute, sweet boy." Yūta Mochizuki, the longest-running among the musical actors, went on to perform as King Endymion during Fumina Hara's musicals.