There's 54 character in there (not counting the one without names, easter eggs and filler charas) tho it's centered around 6 main charas and 4 "almost main at this point" and 15 commonly reoccurring charas (the rest being relatives that sometimes show up, dead people that only show up in photos/flashbacks, etc)
The comic makes it kinda impossible to have them separated. it would make the comic unreadable if it was spread between many different galleries (I've considered posting the comic as a literature instead but having to tag and sort so many galleries every time I post 1 pic sounded like hell too sooooooooo yeah)
To be fair it initially started out with a just Isaak with 9 background character that didn't need their own profiles, but things "got out of hand'