Fifth Brother's Species

The Fifth Brother's species is an unnamed Force-sensitive humanoid race. A male member of this species, the Fifth Brother, was a Jedi that fell to the dark side and joined the Galactic Empire as an Inquisitor.

Biology
Members of this species are externally very similar to Humans, but bear mint-colored eyes and grey skin, along with some distinctive line-like dark markings on their faces, which appear to bound their eyes and mouths. They are Force-sensitive, capable of becoming Jedi.

History
At some point before 19 BBY, a male member of this species was taken into the Jedi Order as a youngling. In 19 BBY, Jedi-turned-Sith Anakin Skywalker and all clone troopers of the Galactic Republic turned on and massacred the Jedi under Order 66, a command from Chancellor Palpatine, who was in truth the Sith Lord Darth Sidious. This individual survived the order, and was soon taken by the newly formed Galactic Empire, drafted into the Inquisitorius alongside other Force-sensitives, made into a Jedi-hunting assassin and given the name of Fifth Brother.

Appearances

 * Star Wars Rebels s02e04, "Relics of the Old Republic" (2015)
 * Star Wars Rebels s02e05, "Always Two There Are" (2015)
 * Star Wars Rebels s02e10, "The Future of the Force" (2015)
 * Star Wars Rebels s02e11, "Legacy" (2015)
 * Star Wars Rebels s02e18, "Shroud of Darkness" (2016)
 * Star Wars Rebels s02e21-22 "Twilight of the Apprentice" (2016)
 * Obi-Wan Kenobi (2022)