Humans live in a comfortable dream that repeats itself. They control the dream. They were humans once too. Some humans wake up, most don't. Daniel wakes to be told that things could be different. Daniel believes it. For a while at least.
as Martha
as Husband
as Assistant
as Sophia
as Woman
as Supervisor
as Keeper 3
as Sleepwalker
as Joseph - Keeper 2
as Boy in the picture
as Daniel - Keeper 1