The relationships of Kassius Konstantine.
The Grand Inquisitor
- Main article: The Grand Inquisitor
- Main article: Darth Vader
- Main article: Kallus
Kassius Konstantine was a good associate to Kallus and they helped each other destroy the Rebels when Kallus was on the Relentless. Also, they both shared a dislike towards the Fifth Brother. On board the Relentless, they would both make comments about the Inquisitor, which also shows the split between the Imperial and the Dark Side in the Empire.
However, despite their fairly good acquaintance, Konstantine doesn't regard Kallus as a friend, and showed no concern for him when he returned injured from a mission. Kallus was visibly hurt by this.
- Main article: Fifth Brother
- Main article: Thrawn