Rio Natsuki is a voice actress born in Tokyo in 1969. She is hard to pigeonhole; in Digimon Adventure 02, she voiced the Meganekko geek Miyako; in Get Backers, she voiced Gorgeous Gaijin Hevn, and in Bubblegum Crisis 2040, she voiced Linna, a worked-up salarywoman but still sociable enough.
- Head in Tweeny Witches
- Hevn in Get Backers
- Joy in Shenmue II
- Linna Yamazaki in Bubblegum Crisis 2040
- Lulu in Final Fantasy X
- Maki in Weiß Kreuz
- Merrybell Gadget in ∀ Gundam
- Miyako Inoue in Digimon Adventure 02
- Nanami Jinnai in El-Hazard: The Magnificent World
- Naomi Fluegel in Zoids: New Century
- Tsubasa Mc Enzie in Kidou Tenshi Angelic Layer
- Rea Masaki in Tenchi Muyo! Ryo-Ohki
- Rio Mei Long in Super Robot Wars
- Ruko Kireinasora in To Heart 2
- Sion Eltnam Atlasia in Melty Blood & Carnival Phantasm
- Wanda in The Fairly OddParents!
- Yukari Sanjou in Shugo Chara!