The answer in fact varies. There are two possible endings in the Force Unleashed. In the first alternate ending he is killed by Darth Sidious while in the second he turns into a Sith lord. By means of the Expanded Universe he is considered dead.
Starkiller was born 19 BBY (He died 2 BBY) in star wars.
Darth Vader apprentice (Known as Starkiller)
Actually, Starkiller is not his real name. His real name is Galen Marek, but since Vader killed his father and trained him to know the dark side ever since Galen was only 3, Vader called him Starkiller for identity purposes only
Galen Marek or Starkiller.
Galen Marek
Yes
Starkiller? He was actually a clone of the original Starkiller, who is really Galen Marek.
Starkiller
yes starkiller is a clone.you can read the full details on the wookieepedia; Dark Apprentice(clone)
No, Star Killer died in Star Wars the Force Unleashed. In Star Wars the Force Unleashed ll, you play the clone of Star Killer
If you meant to ask if Starkiller Force-chokes in The Force Unleashed, yes, but only in the first one; not in the second game
I highly doubt it. If there is it has not been announced yet.