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|As a result of the New 52 in 2011, the entire line of DC characters was relaunched, incorporating properties belonging to the company's imprints: Wildstorm, Milestone, and Vertigo. As such, elements of this character's history have been altered in some way from the previous incarnation. For a complete list of all versions of this character, see our disambiguation page.|
- You throw Digger Harkness... and he just comes back stronger.
- — Captain Boomerang src
Captain Boomerang is an Australian criminal who specialized in throwing boomerangs with deadly accuracy. He was formerly a member of the The Flash's Rogues before he was captured and sent to Belle Reve to join the Suicide Squad.
Though he liked to make up fake stories about his origin, the truth was, from an early age, George "Digger" Harkness taught himself how to carve and throw boomerangs extremely well, having known his absentee father was especially proficient with them. Young Harkness believed that, if he could become better with boomerangs, it would somehow impress his father if they were to ever meet again.
When he was older, Harkness moved to Central City in the United States, determined to become a master thief with his boomerangs, and became the costume criminal "Captain Boomerang". However, his plan went awry when he was contested by the vigilante speedster the Flash, who constantly put Harkness behind bars. Captain Boomerang allied himself with the Flash's Rogues gallery, but, still, even their combined efforts were no match for the Flash.
New Suicide Squad
While on a mission in a super-prison in the Arctic, the Suicide Squad were discovered a portal to the Phantom Zone, which Captain Boomerang wasn't smart enough to stay away from. While staring at it, Boomerang was zapped by a blast of heat vision from the newly freed General Zod, killing him. However, his consciousness was somehow transported back in the form of a ghost within the power systems of Belle Reve that was discovered when the Squad member Hack was digging through them. Hack then proceeded to remateriliaze Digger, making him human again to help stop the rampaging General Zod.
Justice League vs. Suicide Squad
When the Justice League found out about Amanda Waller's Suicide Squad operations, the team intervened on one of the Squad's missions in Badhnisia, intending to put an end to Task Force X. Trying to split up the Justice League to avoid being captured by them, the Squad each took their respective heroes - Captain Boomerang being chased by his long time nemesis the Flash. Despite the Flash catching Boomerang, the Justice League was ultimately defeated when Squad member Killer Frost used a mighty blast of ice to freeze the Justice League long enough to be detained and taken to Belle Reve.
Later, Amanda Waller revealed that the members of her original Suicide Squad, which had been kept in a secret underground facility, had been broken free by the mastermind Maxwell Lord and that she needed the Justice League and the new Suicide Squad to work together to stop them. Captain Boomerang and the Flash, now working side-by-side, together fended off inter-dimensional monsters summoned by the villain Johnny Sorrow. Even after Lord managed to summon the demon Eclipso with the Heart of Darkness, Captain Boomerang helped fend off the mind-controlled masses with the remaining members of the Suicide Squad and Batman before defeating Lord and saving the day. 
Harkness mentioned the Suicide Squad went on a mission to Kahndaq and he was the only one to escape.
- Boomerangs: All trick boomerangs, that George used with masterful skill.
- George Harkness was created by John Broome and Carmine Infantino, first appearing in The Flash #117. However, in the Prime Earth continuity, George Harkness first appeared as part of the New 52 DC Universe in Suicide Squad (Volume 4) #3 by Adam Glass and Cliff Richards.
- Captain Boomerang's weapons were so dangerous, that even the Outlanders Militia wanted them for themselves; along with the rest of the The Flash's Rogues' weapons.
- 142 Appearances of George Harkness (Prime Earth)
- 81 Images featuring George Harkness (Prime Earth)
- 7 Quotations by or about George Harkness (Prime Earth)
- Character Gallery: George Harkness (Prime Earth)
- Suicide Squad (Volume 5) #2
- The Flash (Volume 5) #14
- Suicide Squad (Volume 5) #8
- Justice League vs. Suicide Squad #1
- Justice League vs. Suicide Squad #2
- Justice League vs. Suicide Squad #3
- Justice League vs. Suicide Squad #4
- Justice League vs. Suicide Squad #5
- Justice League vs. Suicide Squad #6
- Doomsday Clock #6
- Suicide Squad (Volume 5) #47
- New Suicide Squad #10
- The Flash (Volume 5) #18
- The Flash (Volume 4) #19
Suicide Squad member
Secret Society of Super-Villains member