Aldrich Killian is obsessive, arrogant, and insane. He doesn't like being turned down. He has an interest in Pepper Potts. With Extremis and when using it in battle, he becomes the supervillain Firebrand.
Aldrich Killian was a bright and cheerful person who meet Tony on December 31st 1999 who invited Tony and Maya Hansen to join his company A.I.M.. Maya accepts but Tony refuses and tricks Killian into meeting him up on the roof in