|[List of appearances]|
Thrawn was a Chiss male Grand Admiral working for the Galactic Empire. After the Grand Inquisitor and even Darth Vader failed to put an end to growing rebellion on the planet Lothal, Thrawn was sent to deal with them, effectively finding the rebel base and driving the rebels from it. He also uncovered Agent Kallus as a rebel spy.
- The official description and box art for 75170 The Phantom refers to Thrawn as "Admiral Thrawn", whereas in the Star Wars Rebels, Thrawn holds the significantly higher rank of Grand Admiral. Thrawn's minifigure also features an incorrect insignia, showing an Admiral's rank instead of a Grand Admiral's. This may indicate that the minifigure is based on concept art for Thrawn's appearance in Star Wars Rebels, where he was drawn with an Admiral's insignia and referred to only as an Admiral.