Additional cast members have been announced to join the cast of the upcoming TV anime Frame Arms Girl. Character designs for their respective roles were also revealed. The series, which will be adapted by studio Zexcs and A-CAT, is set to premiere in Spring 2017.

Materia "Shiro" and "Kuro": Erii Yamazaki (Nyanko Days)
Architect: Hibiku Yamamura (Kiznaiver)
Jinrai: Minami Kabayama (Nurse Witch Komugi-chan R)
Frezvelk: Rika Abe (Death Parade)

The anime will be based on a series of plastic model kits under the name of Frame Arms, which is developed by Kotobukiya with original designs made by Takayuki Yanase. The model kit series was redesigned to girls in 2015 by Humikane Shimada as part of the Frame Arms Girl series. In May 2015, Kotobukiya released a short anime bundled with one of the model kits.

Source: Moca News 1, 2