Rio's full name is Rio Rollins Tachibana, and she'll be voiced by Marina Inoue, one of my faaaaavorite seiyuu, so I'll be checking it out for that much, at least. Here's a full cast list-- not that it'll mean much since we don't know diddly about who these characters are:
- Rio Rollins Tachibana - Marina Inoue (Gurren Lagann's Yoko, Valkyria Chronicles' Alicia)
- Mint Clark - Ayana Taketatsu (K-On!'s Azusa Nakano)
- Rina: Chiaki Takahashi (BlazBlue's Litchi Faye Ling)
- Anya: Yukari Fukui (Gurren Lagann's Nia)
- Risa: Kikuko Inoue (Ah! My Goddess' Belldandy, Fullmetal Alchemist Brotherhood's Lust)
- Caltia - Sayaka Ohara (BLEACH's Masaki, xxxHOLiC's Yuuko)
- Tiffany - Saki Nakajima (Hayate the Combat Butler's Saki Kijima)
- Rosa - Kaori Shimizu (Serial Experiments Lain's Lain)
- Linda - Yoko Hikasa (K-On!'s Mio Akiyama)
Quite a cast-- it's a reunion for Yoko and Nia from Gurren Lagann AND for Mio and Azunyan from K-On!. I have no clue what it'll be about, exactly, but at least we know it'll SOUND good.
Hmm, that said...I wonder who you guys would include in your Dream Anime Cast-- like, my ideal anime would definitely have Marina Inoue and Mamoru Miyano in it, along with Jun Fukuyama, natch.
I've liked Rio's design for a while & have watched a few videos of the pachislot machines so I guess I'm interested in this. It'll probably take place at a casino with at least one scene of her dealing poker or some other card game. (Tecmo released a Rio BlackJack game on the iPhone last year.)
I'm already sold on the anime.