Of course, I remember the "big" characters, but not so much the Twins, the woman talking to the scientists in the core, and so on. Just to make it clear, I'll list who I DO remember
Zoe, April, Kian
The woman that ran the inn
The guy who was trapped inside April's calculator
That might be a fairly complete list of major characters, but for some, I can't exactly remember each of their roles (I think this is due to plugging through CH 4-the end without going to sleep!). It would be great to have a name, photo, and a summary of "what they did" in the game...