Want this question answered?
It will be Mark Hamill, who played the younger Luke Skywalker in Episodes IV-VI (A New Hope, The Empire Strikes Back, Return of the Jedi).
Yes.
Yes, in the Star Wars Expanded Universe, Luke Skywalker has a son named Ben Skywalker. However, in the official Disney canon, he does not have a son.
Star Wars: A New Hope
Luke Skywalker was in all 3 original trilogy films: A New Hope (as it's named today), The Empire Strikes Back, and Return of the Jedi. Luke Skywalker was played by actor Mark Hamill who is currently famous for voicing bad guy characters, including Firelord Ozai from the TV series Avatar: The Last Airbender and the Joker from Batman.
Luke SkywalkerIf you follow the EU, it looks like Cade Skywalker is the last hope*fair enough but when you think about it it seems like the Skywalker bloodline is the "last/New Hope" because before Luke was born Anakin was their new hope for bringing balance, and he did by killing most of the jedi (2 Jedi left + 2 Sith left =balance) Luke was the galaxies hope for peace and he brought that (though there would have been peace if the rebels hadn't started a war) and then theres Cade...
Star Wars
Mara Jade Skywalker gave birth the Ben Skywalker, Luke's son, in the novel Rebirth, from the New Jedi Order. Neither Luke nor Ben Skywalker (Luke and Mara's son) are dead...
Main characters in A New Hope include Luke Skywalker, Obi-wan "Ben" Kenobi, Han Solo, R2-D2, C3PO, Leia Organa, and Darth Vader.
That is a matter of debate. Although I am a huge fan of Ahsoka Tano, I personally believe it would have to be Luke Skywalker for he is the one responsible for creating the New Jedi Order
The first Star Wars book with Luke Skywalker in it was George Lucas' novelization of A New Hope written in the late 70's. If you are wondering about in the Star Wars timeline, the answer would be the Novelization of Revenge of the Sith.
Luke Skywalker leads a new Jedi Order, gets married to Mara Jade, and has a son named Ben, after his old mentor Ben Kenobi. All of this information can be read in lots of various books.