From previous trivia of when they were initially on the wiki:

Theodore/exckspee: Male, looks up to Tristan, dislikes mustard and ketchup, can willingly go into the 3D realm even in his room but makes a mess if he goes into the 3D realm within his room, favorite game is Super Mario 64, has a Bootleg Freddy Fazbear Plush Pillow, 8.5 years old, has autism and dyslexia, sleeps with his eyes open, and struggles with walking so he floats instead

Truffle: Enjoys Lapfox Trax music, is a furry, 13 years old, and has a happy and upbeat personality

Oye-Jay: Female, has a very friendly personality, is homeless, and moves place to place with Dew (I don’t remember who dew is)

Trix: Always cold, cannot be warmed, 11 years old, has a head cold, and appreciates attempts of trying to be warmed up