Midori Okamoto is a supporting antagonist in the anime Star Driver. She works as the school nurse at Southern Cross High School while secretly acting as the leader of the Glittering Crux Brigade's science division, where she is known by the codename Professor Green. As a Star Driver, she pilots the cybody Yoddock. Her background as a scientist and nurse shapes her role within the organization, allowing her to combine medical expertise with scientific experimentation. Personality-wise, Midori is defined by an obsessive fascination with bishonen, or attractive young men, which she indulges by collecting candid photographs of male students in albums. She is playful, manipulative, and unapologetically driven by her desires. Her motivations stem from this infatuation as well as her loyalty to the Glittering Crux's overarching goal of breaking the seals of the four maidens to free the cybodies. In the story, she serves as a recurring obstacle for the protagonist Takuto Tsunashi and his allies, using her position as school nurse to gather information and her scientific ingenuity to create tools such as the Mandrake potion, which she uses to seduce male students. Her first-phase ability grants her temporary age regression, which she employs to disguise herself as a student named Hina in order to get closer to her targets. Notable abilities include this age regression power and a restoration technique that can heal others, but it potentially endangers the subject's life by drawing upon the life force and libido of a Star Driver. Her relationships with other Glittering Crux members are professional but tinged with her characteristic playfulness. While her schemes are consistently thwarted over the course of the series, she remains largely static, driven by her personal obsessions and her commitment to the organization. In combat, she pilots the warrior-type cybody Yoddock during battles within Zero Time.