Maybe a more criminal type of mercenary, a stone-cold killer who eventually betrays Jack/Jill for monetary gain, maybe even offers the PC a deal along those lines. An undercover Black Void pirate hoping to steal the inheritance before coming to the conclusion that JJ doesn't have what it takes to win it. A ruthless but poor Rusher who intends to follow along until they get a chance to steal JJ's ship and stuff. Any of these, and that eventually turns up as a lieutenant of Miriam Bragga, who so far seems to monopolize violent cold-heartedness despite not really appearing. There's a bunch of cold-hearted slavers, most waiting to be implemented I believe, but few killers. Or maybe one or two red myr soldiers who want a taste of a more advanced sort of warfare, as it seems Myrellion is calming down one way or another and they want more fighting elsewhere. Or even a psychic/psion of some kind, who JJ was lucky enough to happen upon and rich enough to recruit. He/she needs some way to stay in the race after all. Edit: Myr pair idea development: maybe two early orange myr, one former red and one former gold, who hopes to master modern warfare and forge ties with a galactic megacorp in order to unite the myr races and the cultural strengths of both into a cohesive force to wage war on an interplanetary scale.