Ian

Ian is one of the four overseers of each individual area, the area he occupies is Trita. Unlike the other NPCs, their dialog changes when specific events occur, like when you get the key to the next area, when the ending is activated, and when you attempt to unmask them.

His first interaction makes it seem like he's got quite a bit of an unstable mind and seems a bit loopy and panicky, but unlike the others, he stays in a place (the train) the player can't backtrack to. Because of this, once the train stops, he gives the additional dialog, which makes it seem like the ending has already happened before, but that comment may just be from his unstable state in that area.

Once Seiko attacks Limbo in Trita for following her, Limbo seems to experience death before waking up to find Ian standing in front of him instead, seeming stable and saying that things work a certain way here, making wounds and blood vanish. After that, he then encourages Limbo to continue.

When the ending is activated after the void, he appears in an accessible part of the area, the initial start of the conversation shows his hopelessness for things ending "again", but he instantly then calls Limbo ill, deranged, and a freak for bringing the ending upon them all.

His SE is a partial laugh with a bit of distortion, but not as much as Edgar's SE.

Appearance
Ian has a medium skin tone with his short curly black hair being parted to the right side. His mask has two circular eye holes with a single line crossing through both of them horizontally with a line going through both circles vertically and it has a shark-toothed grin that's smaller than the others' smiles. The shirt he's wearing has a beige t-shirt with gray-ish blue sleeves attached to it with a club on the middle for Trita, aside from that, he's also wearing blue pants and what may also be dress shoes like half of the others are wearing.