Captain Boomerang (full name George "Digger" Harkness) is an antagonist in the DC universe, first appearing in the Identity Crisis #3 comic strip, as a rival of the Flash. An Australian thug and smuggler, who uses a variety of high-tech boomerangs, as weapons of choice, (hence his name), Captain Boomerang has been involved in various villainous organizations, including the Injustice Gang, the Secret-Society of Villains, the Green Lantern Corps, and the Suicide Squad. He briefly appears in the Non-Disney vs. DC Villains War.
Non Disney Vs DC Villains War[]
Captain Boomerang is amongst the prisoners of the Belle Reve facility, as he is treated by his new and harsh supervised enviroment of the facility.