Characters
Here is a brief list of the cast that is involved with the voices. Thanks to animedaisuki for providing information.
Lisa
Voice: Kyoko Hikami
Previous Roles: Rabi~en~Rose/ DiGi Charat
Lisa is one of the main stars of the new TV series. She is the heroine in the series, and her main objective is to find Ai's and Yu's parents.
Kaze
Voice: Nobutosh Canna
Previous Roles: Gatts/Berserk, Gawl/Generator Gawl
From another world, Kaze is the strong Hero of the series. Similiar to a dark ninja (shadow from FFVIj) he has a very strange past and has a lost memory.
Yu Hayakawa
Voice: Yuka Imai
Previous Roles: Jinto/Crest of the Stars
Has lost parents and is in search of them.
Ai Hayakawa
Voice: Haiko Momoi
Previous Roles: Komugi Nakahara/The Soul Taker
Has also lost parents and is in search of them.
Dr. Hayakawa
Voice: Takumi Yamazaki
Previous Roles: Scryed
Marie Hayakawa
Voice: Yuko Minaguchi
Previous Roles: Tales of Eternia