My current thought for the narrator:
And thus, for the answer:
Either The Empire, or the U.S. Navy, as that is where Hamill's father served.
"Look, where I walk!"
"Look, walker in the sky" = "Luke Skywalker"
"Listen, when I speak!"
Hamill has gained a reputation as a prolific voice actor.
"Babyface, together with a dog?"
Hamill's role Babyface Boretti in the Scooby-Doo movies.
"Skull, together with cat and mouse!"
In "Marvel Super Hero Squad: Comic Combat", Hamill did the voice of RED SKULL. Hamill did voice acting for th Tom & Jerry Kids episode "Droopy Man Returns".
"The first time, I was a king"
Hamill's first appearance, according to IMDB, was as "King Blackyard / King Karuta" in "Exchange Student Zero"
"The second time my mother was a Queen."
The mother of Luke Skywalker was Queen Padme Amidala.
"But I have also been the Joker"
Hamill's role in the animated Batman series.
"In the future I will awake as a Chess champion again."
In chess a champion is also referred to as a Grandmaster.
In the Star Wars expanded universe, Luke Skywalker becomes Grand Master of the Jedi Order.
Mark Hamill will be playing Luke Skywalker again in the new Star Wars film.