Monday seems to have a criminal past, but Orderly doesn’t have access to Monday’s complete file, so he’s not quite sure. Monday is probably Orderly’s toughest nut to crack.
Wednesday seems to have an extremely high IQ. She might be a highly skilled computer hacker, or some sort of programmer informant. She likes Orderly, but it’s way over his head.
Friday is harmless, and always down for a debate about pretty much any topic. It’s unclear how he got this way, but Orderly gets along with Friday, even though he’s messy.
Sunday seems to be scared of everything. He is easily riled up by the other days and is often lost in his own thoughts. Orderly isn’t quite sure what to do with Sunday.
If Monday’s past is unclear, Tuesday’s is a complete mystery. No one seems to know how long Tuesday has been at the Day’s Facility, and that makes Orderly nervous.
Thursday is probably a pyromaniac. Or he could just be joking. It’s hard for Orderly to tell. He seems to have a love of philosophy, but where he was educated is unknown.
Saturday really gets underneath Orderly’s skin. He’s rude, impatient, and knows how to push buttons. Saturday may or may not be related to the Warden.