First off, I think Matthew Vaughn should be directing this Sequel trilogy. Vaughn did such a great job in the characterization in X-Men: First Class, I think he'd do an even better one in Episode VII. Plus, he'd bring a new, different, fun feel to the series which I'd like.
- I think Mark Hamill should definitely reprise his role as Luke Skywalker. I'd want him to have an Obi-Wan type of character in the new series. He should be a Jedi master and a mentor the younger generation of Jedis. I personally don't want to see Carrie Fisher as Leia again and I have mixed feelings about Ford returning as Han but Hamill is a MUST for me.
Liam Hemsworth - Ben Skywalker
Ben Skywalker is the son of Luke Skywalker and Mara Jade. Ben was trained by Jacen solo, his cousin. Ben has the traits of both a fighter and an investigator.
Aaron Johnson - Anakin Solo
Anakin is the youngest child of Leia Organa and Han Solo. He is named after his grandfather, Anakin Skywalker. He is a talented pilot who is prodigiously gifted both in the Force and mechanical engineering.
Ben Barnes - Jacen Solo
Jacen is the son of Han Solo and Leia Organa. He is the twin brother of Jaina Solo. He was trained at the Jedi Academy and started to train his cousin, Ben Skywalker. He ventually fell to the darkside and became known as Darth Caedus, turning against his family and friends.
Rachel Leigh Cook - Jaina Solo
Jaina Solo is the daughter of Han Solo and Leia Organa and also the twin of Jacen Solo. She becomes Mara Jade Skywalker's apprentice, and when her brother turns, she eventually fights him.
Lee Pace - Corran Horn
Corran Horn trained to become a Jedi Knight after his wife was kidnapped. Horn became an accomplished pilot as well. Eventually, he got promoted to a Jedi Master. Corran Horn carries a "dual-phase" lightsaber. Only a few known to exist.
Tom Hiddleston - Kyp Durron
Kyp Durron is a leading Jedi Master in Luke Skywalker's New Jedi Order and he is responsible for man deaths during his anti-Imperial rampage. His deep anger and rage was easily taken over by Sith Lord, Exar Kun.
Daniel Day Lewis - Exar Kun
Exar Kun was a Jedi Knight who fell into the darkness and became an infamous Dark Lord of the Sith Lord.