Jason Solo

Jacen Solo is the son of Han and Leia Organa Solo, the twin of Jaina Solo, and the younger brother of Anakin Solo. From childhood, he was Force-sensitive, trained by Luke Skywalker, and became one of the most powerful Jedi of his generation.

Character
Empathy and connection with the Living Force. In his youth, Jacen had a keen sense of living beings, loved animals, and strove for harmony.
Rationality and an obsession with "efficiency." Over time, he came to believe that the ends justify the means, and for the sake of "the stability of the Galaxy," he was willing to make cruel decisions.
Internal conflict. He sincerely believed he was doing everything for the good of his loved ones and the galaxy, but his actions were destroying his relationships with family and friends.
A sense of duty and responsibility. He always perceived his power as a duty to protect and guide, even if it meant going against those he loved.

Skills and abilities
Powerful use of the Force: telekinesis, precognition, emotional control, advanced use of techniques related to the Living and One Force.
Combat skills: master of lightsaber combat, tactical thinking, ability to work in a team and lead.
Unique techniques: while in captivity with the Yuuzhan Vong, he learned to interact with their biotechnology and even temporarily control duriams (special coordinator creatures).
Mental link with his sister: Thanks to his innate connection with Jaina, he could exchange sensations and coordinate actions in battle.