As seen in Obi-Wan Kenobi, the Inquisitors are referred to as “Brothers” and “Sisters.” Introduced in Obi-Wan Kenobi episode 1, the show’s principal Inquisitor is Reva,
who is known to her allies as Third Sister. Rather than use their given names, the Inquisitors distinguish each other with numbers.
In the Star Wars franchise, the Inquisitors are an organization of lightsaber-wielding, Force-sensitive warriors who fight in the service of Darth Vader and the Empire.
Created in the aftermath of Star Wars: Episode III - Revenge of the Sith, the Inquisitors live to fulfill one task, which involves the execution of the various Jedi who managed to survive Order 66.
the Inquisitors are finally making their live-action debut as the primary threat to Ewan McGregor’s Obi-Wan Kenobi in his six-episode Disney+ series.
The arrival of the Grand Inquisitor, Reva, and Fifth Brother has provided viewers with a taste of their ruthlessness.
Regardless of whatever familial bonds they may have, the Inquisitors are still Jedi who have fallen to the dark side.
Ultimately, the Brothers and Sisters of the Inquisitors are driven by the same emotions that fuel the Sith, meaning that they’re equally prone to ambition, greed, hatred, jealousy, and more.