Autistic characters that may seem like they're neurotypical (they are not):

Bum (level 3 autistic)

Caro (level 1 autistic)

Aketh (level 2 autistic)

(Etc)

Huge range of nationalities that are not just "oh that character is black and that one is asian!":

(Each character has their individual nationality settled, including some that are mixed.)

Albino POC character:

Bum

Blind/half blind (+partially blind) characters:

Caro (half blind)

Leviathan (partially blind)

Ditti (partially blind/myopic)

Anna (partially blind/myopic)

(Etc)

Mute (+selectively mute) characters:

Bum (selectively mute)

Abel (mute, knows SL)

Caro (selectively mute, knows SL)

Atlas Moonique (mute, knows SL)

Grim (selectively mute)

Characters that have ADHD or ADD or AUDHD/AUDD:

Anna (ADHD)

Ezekiel (ADD)

Achan (ADHD)

Baphomet (ADD)

Nanimy (ADHD)

Characters with compulsive disorders:

Lance

Achan

Cain

Nanimy

Gabriel

Characters with alexithymia:

Caro

Bum

Irá

Grim

Characters with physical disabilities:

Chloe (has 3 robotic prothesis)

Gabriel (lost his left arm, can barely walk.)

Characters with vitiligo:

Lance

Nanimy

Ditti

Characters with heterochromia:

Achan

Raze

Characters that are queer (both gender and sexuality wise):

Caro

Anna

Lucifer

Baphomet

Leviathan

Lance

Dallin

Bum

Irá

Achan

Himeros

Cain

Nanimy

Dante

Ditti

Raze

Aketh

Light

Thgil

Ezekiel

Gabriel

Amongst other things!