Background
Age: 52, Born 18 BBY.
One of the members of Serenno’s House Dooku and the great-nephew of Count Dooku himself, Tyrellius Dooku was born on Alderaan, after his family fled Serenno to escape the newly established Empire’s reprisal for Dooku’s role in the Separatist crisis and Clone Wars.
With House Dooku’s holdings largely seized by the Empire, Tyrellius’ family fled to the homes of related nobles in Alderaan, particularly Houses Thul, Panteer, and Organa, who were connected to House Dooku by marriage. It was at this time that Tyrellius befriended a very young Leia Organa, one year his senior. House Dooku was technically on the run, however, and was unable to stay on Alderaan, so Tyrellius spent much of his childhood raised on stories of the heroic Count Dooku being ahead of his time, trying to stop the Republic before it became the universally-hated Empire.
Learning to survive while on the run, Tyrellius became adept at exploring and thieving, gaining an ambition to make his mark on the galaxy. Years later, shortly after the Battle of Yavin, out of curiosity, greed, and family pride, he broke into the Imperially-occupied former palace of Count Dooku on Serenno for loot, lore, and heirlooms. The confusion and readjustments after the Battle of Yavin provided a security lapse opening that Tyrellius was happy to exploit to easily gain access to the palace. What he found there would change his life forever.
The palace contained a cortosis vault that even the best Imperial cryptographers could not unlock or even break into by force. When Tyrellius snuck in and tried to open it, he discovered that Count Dooku had set the special lock to open to not a passcode, but the genetic code of House Dooku. The vault recognized Tyrellius and allowed him access, revealing itself to not be a vault but an elevator that led to a secret secondary base deep underground beneath Serenno’s surface.
Within this secret base, Count Dooku left behind recording and resources for his heirs, including holos that explained his disillusionment with the Republic and his attempts to save the galaxy from the creeping darkness by aligning with Palpatine (which corrupted him in the end). The base also included an army of battle droids ready for activation and a massive dock housing an unfinished second Subjugator-class dreadnought, the Malevolence II, as well as a storehouse of credits and resources. Upon this rock, Tyrellius built his church, converting the Malevolence II into a pirate ship shadowport and founding his own pirate guild: the New Separatists.
Incensed by not only the Empire’s treatment of his family, but also the destruction of Alderaan, while also continuing to be driven by selfish ambition and greed, Tyrellius Dooku made the New Separatist guild’s focus piracy and morally gray tactics and raids that would generally hurt the Empire and help the Rebellion, all while netting him a decent profit. While he sold supplies to the Rebellion at a discount and clearly favored them, he was nevertheless a pirate and war profiteer.
Following the fall of the Empire at Endor and Jakku, the New Separatist guild flourished, as the New Republic cracked down on the Hutt Cartel while tolerating the relatively benign New Separatists, reducing competition. The New Separatists also found a niche as a source of reliable mercenaries that could be called upon to fix problems when the relatively weak and overly bureaucratic New Republic had trouble actually executing actions and enforcing laws. The New Separatists, and particularly the Malevolence II, gained notoriety as a necessary aspect of society, run with honor and diligence, as it was one-stop shopping for anything you needed, legal or illegal.
An old childhood friend of Leia Organa, and a trading contact during the Rebellion, Tyrellius Dooku was on General Organa’s shortlist of underworld contacts when the newly-founded Resistance needed supplies or information, or wanted mercenaries to perform missions too dangerous or delicate for the Resistance proper. When the First Order rose to power following the Hosnian Cataclysm, Tyrellius Dooku was advised by Leia to keep his distance, even during the Battle of Crait, as the New Separatist’s function as an underworld supplier would be invaluable down the line; becoming too entangled with the Resistance would alienate many customers and diminish the New Separatists’ network of contacts and operations. The galaxy was barely holding together as it was, Leia argued, and the New Separatists were too vital to the survival of many of the galaxy’s residents.
Tyrellius Dooku accepted this logic but felt guilty he didn’t help at the Battle of Crait, in which only several dozen Resistance members survived. But Leia had also asked for a new favor: to keep the lines of trade open and help seek and mobilize Resistance sympathizers for mercenary missions and ultimately for the major battles to come, an endeavor that would ultimately benefit everyone, especially Dooku financially. Tyrellius Dooku agreed and sought out mercenary operatives who would be valuable to both him and the Resistance, including Rush Sterling and sidelined Resistance member Sergeant Jeerus Kor.
Motivation
Greed and Ambition, but since he has a spark of good in him and dislike for authoritative regimes, he favors organizations like the Resistance and the Rebellion.
Ultimately, he can’t commit to being a good guy since he can’t get past his own self-interest, a fact General Organa has called him out on and is part of why she doesn’t want to bring him fully into the Resistance fold.
Harboring a personal obsession with wanting to be Force-sensitive like his ancestor, Tyrellius has assembled a decent private collection of Force lore and artifacts. While it seems he is not Force-sensitive with regards to the Living Force, his penchant for economic opportunities in the galactic underworld has led him to pursue a theory: the Credit-Force. He has an aptitude for reading and acting on the ebb and flow of the galactic economy, and he has been cross-referencing that with Force properties, theorizing that if the Force is in all things, and since living beings need supplies and value, there is an element of the Force in what he does, and in this way, he is indirectly Force-sensitive.
Secretly, General Organa, an actual Force-sensitive, finds some merit in this theory, which is why she instinctually is motivated to keep him at arms length instead of bringing him fully into the Resistance; Tyrellius fulfills a needed function in the ebb and flow of the galaxy, and she senses that greater cosmic purpose.