Hank and Don Hall gained their powers of heightened strength and agility from a mysterious voice and fought crime together as Hawk & Dove, despite their diametrically opposed opinions about the use of force. The conservative Hawk (Hank) was hot-headed and reactionary, whereas the liberal Dove (Don) was more thoughtful and reasoned (but prone to indecisiveness). Their father, a judge, displayed more balanced political beliefs and firmly disapproved of vigilantism, not knowing his sons were costumed adventurers
Superman killed Don for trying to save the life of a small time criminal, Hawk was to far away to help his brother. After Don's death Hank slipped into a deep depression and became extremely violent. His fellow rebels have said " He's almost as bad as the Lords since Dove died." But luckily the source of the Hawk/Dove powers have been revealed as T'Charr and Terataya, two of the Lords of Chaos (Hawk) and Order (Dove), respectively. A woman named Dawn Granger became the second Dove, who Hawk reluctantly teamed up with. This Dove, while considerably more aggressive and self confident than Don, had the power of flight as well as the additional innate ability to instantly assess a combat situation, enabling her to resolve it in a manner that minimized the need of force on her part. The two have become like brother and sister after many battles side by side. To Hank it's almost as if his brother was reincarnated in this woman's body. He tends to think of her as the sister he never had.