Cast Page (Spoilers)
Once again, characters are presented in order of appearance.
Architect
The first of the Location's mysterious builders to be introduced. Smiles all the time.
Archivist
Seen first in Anders' vision, then inhabiting a robot. Was dead for a bit, and remains the sibling we don't talk about.
The Archive
The semi-sapient computer system that runs the Location. Briefly hijacked one of Archivist's bodies, causing a deal of confusion.
Arbiter
The more level-headed of the siblings who built the Location. Their 'flesh' was briefly seen by Sam and Daniel.
Artificer
While she hasn't actually appeared in the story so far, she was depicted, so she's included. She's busy doing sensible things somewhere.
???
Someone mysterious, I guess.
???
ERROR: NO SUCH CHARACTER OF THIS DESIGNATION EXISTS.
Ibrahim 'Ibby' Chakrabati
The all-knowing, all-seeing person who mostly dwells behind the scenes. You can find him if you know where to look.