A hero from the DC Animated Universe.

Mystery Child

John Stewart is shocked to find out Warhawk is his son.

During their term on the Justice League John Stewart and Hawkgirl began a romance that lasted until Hawkgirl betrayal. After that Stewart began something with fellow leaguer Vixen; however, during a trip to the future John Stewart met Warhawk who called him "Dad". This baffled Stewart, but Warhawk did explain what had happen. It turned out he was the child of John and Shayera. When John returned he decided not to tell Shayera immediately; he did eventually tell her but he also told her he wouldn't be destiny's puppet so it is unknown if the child is still in the future or not, but Dini did vaguely hint that John and Shayera get back together some time in the future.

Justice League Unlimited

Warhawk was with the JLU during its darkest hour.

In the future Warhawk is one of the members of the JLU, even further in the future and he seems to be one of the last members along with Terry McGinnis and Static. Originally Rex was hostile towards Terry because Superman offered him to join without the team consent which angered Rex. Eventually however him and Terry formed an alliance and became friends.

In the episode "Epilogue" Rex appears as one of the final members of the Justice League along with Terry McGinnis, a future Green Lantern and a future version of Wonder Woman.

Powers

Rex is half Thanagarian and half human, because of this he does not have organic wings like him mother. Instead he uses a pair of wings formed from Nth metal. This allows him to fly. He also wears a protective armored suit which has razor-sharp talons.

Golden Eagle

The similarities between Warhawk and Golden Eagle are under speculation.

There is some speculation wether Warhawk was inspired by Golden Eagle or may even have crossed paths with him during the years which gave him the idea to become a hero. Bruce Timm and Paul Dini have neither confirmed nor denied these rumors.