Hawkman is one of the Blind Bag characters in LEGO Dimensions 2: The Rise of Enoch, from the DC Comics franchise.
Prince Khufu and his lover Chay-Ara's souls were strengthened by Nth metal, a substance which could defy gravity. However, they were murdered by the evil priest, Hath-Set. Due to the Nth metal strengthening their souls, Khufu and Chay-Ara were continuously resurrected and destined to find love in each other before they would be murdered by Hath-Set's reincarnation and the cycle would start over again.
In his current life, Khufu is Carter Hall, an archaeologist. Carter discovered the dagger that the priest used to murder Khufu, received memories of all of his past lives, and recognized Shiera Sanders as Chay-Ara and Anton Haster as Hath-Set. Haster kidnapped Shiera shortly thereafter. Carter used created a hawk-costume and used Nth metal so that he would be able to fly and rescue Shiera, which he did successfully. He continued to fight crime as "Hawkman" and was eventually joined by Shiera as "Hawkgirl".
Above, in italics, is his comics origin. His LEGO origin is unknown.
Hawkman and Hawkgirl joined the Justice League. Other members of the Justice League include Superman, Batman, Wonder Woman, Green Lantern, The Flash, Aquaman, The Martian Manhunter, Cyborg, and at times Nightwing, Batgirl, Huntress, Supergirl, Zatanna, and Shazam!.