Oldest kid of Leia. Older sibling of both Jaina and Baby Anakin. Is often twins with Jaina, and can sometimes be triplets with Jaina and Baby Anakin.
In constant competition with Jaina for Least Valid Person in the Universe. Always from a highly placed or famous family with a penchant for causing drama for everyone else.
Jacen often has unresolved anger issues. He feels like the world's betrayed him, and his family has definitely betrayed him. He doesn't get along with Jaina at all, though he can be fairly protective of baby Anakin. He often turns traitor if given half a chance.