Characterization
He has been characterized in comics as having a quick, fierce temper with adamant views and opinions. Even in the Golden Age, he had no problem blowing up a villain's lair with the villain inside. At the same time, Carter finds it difficult to balance the "savage barbarian" of his past lives with the "gentleman" of his current incarnation.
Another prominent aspect of his personality is his staunch Conservative views; this has brought him into conflict with Green Arrow (a liberal) several times. During the miniseries Identity Crisis mini-series, it was revealed that the main reason for this animosity was the opposing views that he and Green Arrow took on the mindwipe of Doctor Light, to the point that they came to blows.
It appears, since his rebirth, that Carter Hall has integrated a lot of Katar Hol into his core being. He physically looks like a merger of Katar and himself, while also using the more rugged superhero attire that was a trademark of Katar Hol. Although he has Katar's dark hair, his voice and face appear to be his own as he is easily recognized by Jay Garrick upon return.
Read more about this topic: Hawkman (Carter Hall)