Second Sister

Trilla Suduri, better known as The Second Sister, is a minor character in the 2017-2018 Darth Vader: Dark Lord of the Sith comic book series and the central antagonist of the 2019 video game Star Wars Jedi: Fallen Order.

She is a female Inquisitor that was active during the early stages of the Galactic Empire's reign under Darth Vader's tutelage, and is later assigned with hunting down Cal Kestis, a fugitive Jedi Padawan who survived Order 66 at the beginning of the Jedi Purge, however, she is in addition tasked with hunting down any fugitive or surviving Jedi Knights or Padawans.

Trilla Suduri, was chosen by Cere Junda as a Jedi padawan during the Clone Wars. She and her master escaped Order 66 but were hunted by the Sith. She felt betrayed by Junda which led to her fall to the dark side. She became a Inquisitor and trained under Darth Vader.

She was later present at the Inquisitorious Headquarters after successfully completing another mission, and was undertaken by the other Inquisitors and Darth Vader to kill Jedi Master Eeth Koth. After Eeth Koth's death, two of her comrades Inquisitors are killed by Darth Vader for treason.

She was tasked with hunting down Cal Kestis, and with the help of her Purge Troopers, she located the Padawan and proceeded to fight him. She chased him with the Ninth Sister too. During her final battle in the Fortress Inquisitorius, she is defeated by Cak Kestis. When her former master, Cere Junda, attempts to amend with her, Darth Vader appears and prepare to kill Trilla because she failed to kill them. Her last words were for Cere and Cal : "Avenge us." before Vader kills her. Cal and Cere succeed barely to escape Vader and flee with their lives.

Trivia
◾The Second Sister was introduced at the Star Wars Celebration at McCormick Place in Chicago