Vermia was a female thief with a face resembling a rat. She served as both the apprentice and partner of Ooblamon. Together, she and her mentor journeyed to the planet of Taris with the intention of selling Darth Vader's lightsaber to the Acolytes of the Beyond, a cult devoted to the dark side of the Force.
Vermia's initial appearance was within an interlude found in the Aftermath novel. This novel was penned by Chuck Wendig and made available to the public in 2015.