Tiny, 0.14 meter-wide, six-legged droids, SD-K4a mini-assassin droids manufactured by Baktoid Combat Automata used their speed to avoid blaster fire, and while they did not possess the power of the "parent" assassin droid, however, if they could enter a target's armor, they were capable of killing said target with their sharp legs.
Author: Emperor Ollie
Emperor Ollie, AKA Oliver Queen & Shooting Wamprats, has published several fan made source books for Star Wars The Roleplaying game including Ahsoka the Novel Sourcebook, Star Wars Rebels Sourcebook Season 1 & 2, The High Republic: A Test of Courage Sourcebook, Splinter of the Mind's Eye Sourcebook and countless others.
Fourth Sister
The female individual who became the Fourth Sister was at one point a member of the Jedi Order.
Jayco
Around 9 BBY, Jayco was partners with fellow criminal Haja Estree resided on the planet Daiyu, living life as a con artist. Estree posed as a Jedi who helped those in need in order to make a living, with Jayco helping to be his eyes and ears to direct potential customers to Estree's hideout.
Boosodian
The Boosodians were a sentient species with gray skin and twenty eyes that lived in the galaxy.
Shungbeek
A sentient species that pupates at some point in their lifetime. They breath an argon-rich atmosphere, and have to wear an enclosed perspex dome to survive in other conditions.
Corran Horn (OWK)
Corran and his mother were on the planet Daiyu and desperately needed to get out as Corran's Force-sensitivity put him in danger.
Cyclorrian
Cyclorrians were an insectoid sentient species who lived in hives alongside the rest of their swarm. Native to the Mid Rim planet Cyclor, they had antennae for navigating their darkened hives, compound eyes, and adhesive feet.
Daiyu
A planet visited by Jedi Master Obi-Wan Kenobi and the Inquisitorius in 9 BBY during the reign of the Galactic Empire. It had a breathable atmosphere, temperate, though rainy climate, and sprawling city-scapes.
SD-K4 Assassin Droid
A fourth class droid, the SD-K4 assassin droid manufactured by Baktoid Combat Automata was designed to assassinate targets with high efficiency.