Hank Hall is a fictional character in the DC Comics universe who first appeared in Showcase #75 as Hawk of Hawk and Dove. He later became the supervillain Monarch in the crossover event limited series Armageddon 2001. He later became known as Extant, and appeared in the Zero Hour limited series (as well as some related tie-ins). Eventually, the timelines that led to Hawk's transformation first into Monarch and then Extant were erased.