Characters so far in order of least to most likely to notice something is different about Casey:
Sonel and Forest: Do not care and probably wouldn't know the difference if Casey came running up with no cloak.
Jaren: Is not paying attention, never look to him to complement a new haircut or remember your eye color.
Leal: Is partially blind, might pick up that Casey's acting weird but is probably too depressed to ask about it right now.
Terry: Thinks it is weird that he's picked up a new clothing item but there's more important stuff going on. And she is partially color blind.
Aria: Usually pretty observant, but she wasn't really paying attention to Casey when they met briefly so she's not sure... Something odd is going on though and she doesn't like to let things like that go.

Terry says, "We were hoping you found a way out..." Casey drops to the floor and says, "The deal is off." Terry kneels down and shouts with concern, "What!? What does that mean?" Casey starts to explain, "I saw Willow... She's working for the woman who took Izz-" He cuts himself off before continuing, "Isabell...The deal is off." Jaren also kneels down and he and Leal frown in concern, Aria's brow furrows. Terry asks, "But... Why did she take her in the first place?" "I don't know... she just said she needed her and will give her back when she's done." Casey looks to the side with shiny eyes. Aria doesn't concern herself with that though and suddenly blurts out an observation, "Your hair is different." Casey jerks back in confusion, "Uh-?" She stares at him now suspicious as Casey awkwardly excuses, "I lost my hair tie..." Terry seems to realize something and starts saying, "Hey-"