Making fandom only categories for now, because I also have original characters from my own stories. But they're too many, lol. Enjoy!

Animal Crossing:

• Nozomi (2013, New Leaf's mayor) - human
• Roku (2013, New Leaf) - human
• Roku (2020, New Horizons) - oni
• Wandering Seer (2020, New Horizons) - human witch

BTS fanfics:

• Hyemi, human
• Sara, human

Beastars / Beast Complex:

• Shintaro, red fox
• Hikaru, red fox
• Hachimaru, jack russell terrier
• Irene, calico cat
• Kuroko, egyptian mau cat
• Rowan, red deer
• Flora, orange cat
• Tammy, lionhead rabbit
• Sawamura, white-tailed deer
• Nina, elf owl
• Marlon, friesian horse

Chuck:

• Jenna Montgomery (Countable as Lupin III OC too)

Danganronpa:

• Ibuki Morisawa, Ultimate Gambler
• Jun Yumehara, Ultimate Dancer
• Shizuka Kagamine, Ultimate Guitarist
• Yuki Wakabayashi, Ultimate Singer
• Rika Kirigaya, Ultimate Skater
• Saki Kinoshita, Ultimate Fangirl
• Nyoko Kobayashi, Ultimate Hacker
• Fuyuki Harada, Ultimate Basketball player
• Mako Kisaragi, Ultimate Philosopher
• Ryu Araki, Ultimate Football player
• Masaki Ishikawa, Ultimate ???
• Alex Ueno, Ultimate Gamer
• Niko Munemasa, Ultimate DJ
• Monoyan

Dragon Quest:

• Opiana the Witch
• Victoria de Vere the Queen
• Rena the Thief
• Arayel the Angel of Himmel Village
• Great Priest of Vinger Valley
• High Master of Himmel Village
• Lord Will Lockheart
• Paine
• Amelia
• Eva
• Fatima
• Vesstan
• Akhi
• Amanda Gregory
• Vonon the Listener
• Salem the Prestidigitator

Elder Scrolls IV: Oblivion:

• Aerith, Dunmer
• Edwin, Breton

Fallout New Vegas:

• Xiao
• Victor