In the tenth promo for Shaft and director Akiyuki Shinbo's (Madoka Magica, Monogatari, this season's Nisekoi) spring Mekakucity Actors anime, based on the popular series of songs by Jin (Shizen no Teki-P) titled Kage rou Project (Heat-Haze Project), we're introduced to Mekakushi Dan founder, Mai Nakahara voiced Ayano Tateyama, aka the girl with the scarf you see on Pixiv who isn't Mikasa.
Takuma Terashima voiced Shintaro Kisaragi
Souichirou Hoshi voiced Kousuke Seto.
Misuzu Togashi voiced Hibiya Amamiya
Shinnosuke Tachibana voiced Shuuya Kano.
Nanami Kashiyama voiced Momo Kisaragi.
Mamoru Miyano voiced Haruka "Konoha" Kokonose.
Kana Hanazawa voiced Mary Kozakura.
Kana Asumi voiced Takane "Ene" Enomoto