Bevvox was a bioplasmic organism, who wandered the galaxy alone for a few millennia before founding the "Think Tank", a group of intellects who solve problems for a price, in the 23rd century. His interests varied over time. As of 2375, they were exosociology and quantum mechanics. He was somewhat sensitive about his age and often acted "grouchy" in the mornings.
In 2375, Bevvox and the other Think Tank members attempted to compel Seven of Nine of the USS Voyager to join their group. They contracted Hazari bounty hunters to attack the Voyager, creating a problem that seemingly only they could solve, in exchange for Seven of Nine. (VOY: "Think Tank")