IG-88

Many people in the galaxy fear droids, what with the memories of the Clone Wars still fresh in their minds. Far more terrifying than battle droids were assassin droids, independently programmed mechanical killers that had no masters. IG-88 is a battered chrome war droid who has become a bounty hunter, and answered Darth Vader's call to capture the Millennium Falcon during the events surrounding the Battle of Hoth.