Background
Zonn Zunrun was born to a minor family in the feudal society on the world of Falleen. While his house wasn't very distinguished, he found a way to make himself stand out. Not only could he charm other sentients, like any half-competent Falleen. Zonn also found he could charm computers. He was able to find favor among the higher families by trading their secrets and was able to pay for an education in engineering.
He viewed the way his patrons so readily undercut each either with a mix of amusement and contempt. Half of them knew he was selling their secrets to the very Falleen he spied on for them. How can these fools be in charge of the proud Falleen society? No, the Falleen, and perhaps the galaxy, needed someone focused. Someone smart. Someone who knows what is really happening. Someone...like him.
Zonn knew his family's position would prevent him from making overt movements up the social ladder. From within, anyway. Zonn, inspired by the success and prominence of Prince Xizor, headed into the galaxy. Taking some legitimate jobs, but many more in the underworld, he built a reputation and his skill set. He became known as one of the most prominent slicers and information brokers in the Outer Rim. He could get any information he needed, from sentient or machine, just by asking. He saw even more infighting and conniving among the powerful and privileged in the galaxy than even among the Falleen. And he saw his opportunity to rise.
The chaos that followed whenever one of the elites' schemes turned into a full-blown war always left a place for an ambitious and talented individual to pick up the pieces and create a more powerful structure. He saw the way chaos could work in his favor. He used his skills to place himself in position amongst various organizations, both criminal and legal. He was able to anonymously cause more conflict on Falleen among the ruling class. Nobles and royalty were starting to get into open, and violent, conflict. He would build his resources and alliances in the galaxy and return home a unifier. But, he soon discovered an even greater agent of chaos.
The Rebel Alliance. A bunch of idealistic fools who think they can overthrow the Emperor. No, they were doomed to fail. But, they certainly can cause their share of chaos. Zonn soon realized that he can join up with them for a little while and help bring down even bigger structures. Forget just Falleen. With the trail of destruction, this war could leave, he could cut out a whole sector for himself. Yes, chaos is a ladder. And he will climb it.
Motivation
Ambition--> Power