Memory Police
They are a symbol to represent living under a dictatorship. They control all people’s memories and those that still remember, like the protagonist’s mother, are taken away and never to be seen again.
The Typist
The typist is a victim of oppression. She has no freedom of speech and her voice is silenced. This is reflective of how many feel when living under a totalitarian regime.
Protagonist’s disappearance
The eventual disappearance of the protagonist symbolizes the fact that the Memory Police one – they managed to completely take away her freedom and trap her forever by making it seem as though she never existed.