Inception Wiki
I've had ample opportunity to observe Browning, adopt his physical presence, study his mannerisms, and so on and so forth. Now, in the first layer of the dream, I can impersonate Browning and suggest concepts to Fischer's conscious mind.



A Forger is a specialist at in-dream impersonations. The forger can adopt the physical appearance and mannerisms of a person the target trusts or is comfortable with, in order to mislead them.

Forgers are able to manipulate their appearance because in the dream world a sleeper's body is a projection of their mind. A forger projects the desired appearance into a mirror and then exchanges places with it. With enough skill, a forger can take a wide variety of appearances, unrestricted by age, sex, or size.