I'm sorry this list is soooooo long, I literally did ALL the characters from the game.
Roles:
Yandere-Chan:Meloetta66
Taro Yamada(Senpai):coolstar56
Info-Chan:ThunderBoltZZ64
RIVALS:
Osana Najimi:
Amai Odayaka:
Kizana Sunobu:
Oka Ruto:
Asu Rito:
Muja Kina:
Mida Rana:
Osoro Shidesu:
Hanako Yamada:
Megami Saiko:DancingMint

In parenthesis is their personalities. SB=Social Butterfly
FEMALE STUDENTS:
Yui Rio(Evil):
Yuna Hina(SB):
Koharu Hinata(SB):
Mei Mio(SB):
Saki Miyu(SB):
Kokona Haruka(SB):
Musume Ronshaku(SB):
Midori Gurin(SB):
Sakyu Basu(SB):
Inkyu Basu(SB):
Kuudere(Loner):
Mai Waifu(Loner):
Pippi Osu(Loner):
Kokuma Jutsu(Coward):
Uekiya Engeika(Gardening Leader):
Supana Churu(Coward):
Mina Rai(Heroic):
Shima Shita(Heroic):
Miyuji Shan(Light Music Club):

MALE STUDENTS:
Budo Masuta(Heroic):
Chojo Tekina(Teacher's Pet):
Daku Atsu(Teacher's Pet):
Haruto Yuto(SB):
Hayato Haruki(SB):
Fureddo Jonzu(Photography Leader):
Juku Ren(Heroic):
Kaga Kusha(Science Leader):
Riku Soma(SB):
Ryusei Koki(SB):
Ryuto Ippongo(Teacher's Pet):
Shin Higaku(Coward):
Sho Kunin(Heroic):
Sora Sosuke(SB):
Sota Yuki(SB):