It is called communication
No T.I. is not a Latin King, When he talks about being the King he's referring to himself as the King of the South.
Privateers
A civilian,
CCC
the person who talks in ones sleep is a Somniloquy.
It's called your mom.
A person who talks out of turn can be called disruptive, inconsiderate, or impulsive.
Executive One
there is a website called cleverbot
there's a song called Everybody Talks from the band Neon Trees.
People who were not in the army were called civilian.
A person who talks for puppets is called a ventriloquist. They use skillful techniques to make it seem like the puppet is speaking independently.