Samantha Bart, the actor behind Karlach in Baldur's Gate 3, suggests that people underestimate how unpleasant Karlach was before the game's events.
Bart explains that Karlach's persona in hell was starkly different from her demeanor on the Prime Material plane, portraying her survival instincts in a harsh environment.
The actor implies that Karlach may have resorted to questionable actions to survive in hell, shaping her into a different person, distinct from the version players encounter in the game.
Bart views Karlach's storyline as a redemption arc, highlighting her escape from hell as a chance to redefine herself and distance from her past cruelties.