1
Ochaco Uraraka - My Hero Academia
2
Orihime Inoue - Bleach
3
Okarun - Dandadan
4
Overhaul - My Hero Academia
5
Osamu Dazai - Bungo Stray Dogs
6
Obito Uchiha - Naruto
7
Olivier Mira Armstrong - Fullmetal Alchemist Brotherhood
8
Orochimaru - Naruto
9
Ogun Montgomery - Fire Force
10
Obanai Iguro - Demon Slayer
11
Osamu Miya - Haikyuu!!
12
Otohime - One Piece
13
Onyankopon - Attack on Titan
14
Oluo Bozad - Attack on Titan
15
Otabek Altin - Yuri!!! on Ice
16
Oushi Ashioki - A Sign of Affection
17
Ogai Mori - Bungo Stray Dogs