| family
Leia - mother - He got her kind/caring attitude and her sense of peace, if you know what I mean. They seem to have a stronger bond than Jacen does with his father because he and Leia share more common interests. Leia views Jacen as a boy just trying to find his way. There are many instances where Jacen will follow her to political meetings and the like--- either as an observer, a son, a jedi or a bodyguard. Sometimes all of the above. The latest book shows Jacen sending his mother a message through time by using something he learned on his five-year jaunt around the galaxy. Always learning, that's my boy.
Han - father - He has a hard time understanding his son sometimes, but he loves him nonetheless. Han cares a lot for all of his children and he seems skeptical at first when Leia tells him that Jacen is coming back (after Tratior) but he believes her and it all works out. They have a nice reunion and you can tell Han is very proud of his oldest son. Even though he gets a little wary once Jacen comes back after five years, sporting a beard and an even more slightly disturbing outlook on his powers. Oh and Han notices Jacen is good with kids -- and exclaims that he and Leia let him have to many weird pets when he was a kid. ;D In LotF: Bloodlines, Han says he disowns Jacen after what Jacen pulled with Ailyn Vel.
Anakin - younger brother - He and Jacen sit on opposite sides of the fence when it comes to the Force. During many instances in the NJO, they are seen arguing over what the Force should be used for and what Jedi really are. Anakin thinks it's a tool, like a hammer-- while Jacen thinks there's something more that it's used for. It hits Jacen hard when Anakin dies, but not as hard as it hits his sister.
Jaina - twin sister - She was born a whole whopping FIVE minutes ahead of him. ^_~ Jacen and Jaina share a special bond in the Force because they're twins. It's been like a crutch to both of them since they were very young and when Jacen cuts off the bond, Jaina thinks he's dead. They both survive without it but they still wonder what their other half is doing. XD For more info on Miss Thang and Jacen, scroll to the bottom of this here section. Heee~
Chew - "uncle" - Chewie and Jacen had a nice relationship. Chewie shared the same relationship with the other Solo kids also. He was like an uncle to them. In Vector Prime Chewie and Jacen had a cute exchange about how Chewie thinks all the kids are the same. ^_^ It depressed the kids when he died. But it depressed Han way more then any of them could imagine.
Luke - uncle - Luke and Jacen have a strong relationship. Luke is Jacen's uncle... and he likes the way Jacen thinks. Luke likes the way Jacen is intellectual with the Force. If you know what I mean... hehehe~ Jacen is an important asset to the way Luke views the Force when Jace gets back from his captivity. In The Joiner King, Luke wonders exactly what Jacen has learned and tries to read his nephew -- all while scolding him about playing with that damn brain mapper.
Mara - aunt - She always believes that Jacen is going to grow old and become a hermit like Obi-Wan and Yoda. And live in a little hut in the middle of nowhere (a la Dagobah & Tatooine). She believes in him but is a bit wary of his ways with the Force, especially now that he's returned after five years. There are many instances when the strong-willed Mara Jade Skywalker gets creeped out by Jacen and his suddenly creepy Solo grin. And I'm not even going to get into the whole He-goes-dark-side-and-kills-her-thing.
Ben - cousin - the two of them are actually shown interacting in The Joiner King -- Ben points out that Jacen left when Ben was two. They haven't seen each other in five years, but Ben seems to know exactly what Jacen was doing and asks, "Did you find it?" Later, Jacen takes Ben off to go get something to drink and they seem to be closer than expected for having not seen each other in forever. In the Legacy of the Force series, Jacen is Ben's Master and the two share many amusing scenes together. Ben also gets caught up in whether or not Jacen is doing the right thing all the time and gets a tad conflicted. Po' Ben.
| jaina
Jaina gets her own special section on the Jacen site because... well, if you haven't figured it out already they're twins. :P
Throughout the Young Jedi Knights series and the New Jedi Order, Jacen and Jaina have shown an incredible amount of skill in the Force by their special "twin bond" ... (WONDER TWIN POWERS! ACTIVATE!) The bond grows and changes over the course of their fictional (yet addicting) lives but it stills stays as strong as it can. Awwww, family. <3
While Jacen got his mother's attitude--- calm and caring, Jaina got her father's. Jaina has the same interests as Han, mechanical type things. She's also brash like him and very upfront. Jacen is more peaceful and less... violent. And Jaina is the older sibling. She was born a mere five minutes before Jace.
While their little brother Anakin doesn't get to share the twin bond (Awww... poor Ani. XD) he is also very close to the two and it comes as a shock to the twins when he dies. It's also a very huge blow to their bond. They disagree a lot after Anakin's death and as Jaina had her slip with the Dark Side, the bond wavered and a little after that is when Jacen finally broke it off. Which was good for both of them. It kept her from the Yuuzhan Vong AND Jacen didn't have to deal with her pain. X_X hehe~
After Jacen gets back from his captivity, Jaina avoids him. She's afraid that he will be angry at her for her little vacation to the dark side. He's not. He understands. In Destiny's Way, Jaina (and others) are being used as bait for the Yuuzhan Vong. Jacen gets this crazy-ass idea in his head to go save her himself, even though she doesn't need the help. Vergere ends up dying and Jacen ends up getting ambushed. He doesn't help her at all. But it's the thought that counts, right?
Also during the NJO is the play on twins/gods. Twins are held in high regard in Yuuzhan Vong culture because they represent two of their gods. Jaina plays up to the Trickster Goddess Yun-Harla, while Jacen plays up to Yun-Yammka, who is the Slayer God. (Doesn't fit him, right? :P Wrong. Read Traitor. kekeke~) The Yuuzhan Vong want to hold the twin ceremony where one kills the other, etc. It ends up not happening.
By the end of the series, the two are chuckling together and speaking about each others lives. Neither gets seriously hurt, but Jaina got to kill Tsavong Lah and Jacen got to off Onimi, the real evil behind the Yuuzhan Vong. I'd say they didn't make it out too bad... But next up, we'll see them when they're five years older.
When we see our twins five years later, they're split apart. Jacen on his 5 year journey to discover the ways of the Force and so on. Jaina has a thought about this whole situation and exclaims inwardly that sometimes it seems like she has a totally different brother everyday, because of his changes and mental patterns. Oh noez, Jacen is having an identity crisis! And he's being quite creepy in The Joiner King as well.
Sadly, all this twin bond build-up ended with Jaina killing Jacen at the end of the Legacy of the Force series, after his actions as Caedus had deemed him, for some reason, someone who could not be saved. She (along with all the others in her family) decided he needed to die instead and made feeble attempts at slapping the Caedus out of Jacen and bringing him back to where he belonged. So basically, Vader is redeemable, but Caedus isn't. At the end of the twin section, I have to say the Solo twins kind of let me down and it seems like the Solos and Skywalkers have lost the definition of family. :|