Created by John Broome and Carmine Infantino

Captain Boomerang (Digger Harkness).png
Captain Boomerang (Digger Harkness)
The Original Universe


Real Name: Digger Harkness
Full Name: George "Digger" Harkness
Aliases: George Green
Citizenship: Australian
Marital Status: Single
Known Relatives: W.W. "Walt" Wiggins (natural father); Betty Harkness (mother; deceased); Ian Harkness ("father," mother's husband; deceased); Tom Harkness (half-brother); Willard Wiggins, Jr. (half-brother); Owen Mercer (son, deceased)
Base of Operation: Central City
Group Affiliation(s): Rogues; Secret Society of Super-Villains; Suicide Squad; Society
Gender: Male
Height: 5'9"
Weight: 167 lbs.
Eyes: Brown
Hair: Brown
First Appearance: Flash Vol. 1 #117 (December 1960): "Here Comes Captain Boomerang!"
Creators: John Broome and Carmine Infantino


Captain Boomerang was a career criminal who used boomerangs as his gimmick. He was generally put in prison by the Flash. He was killed while doing a hit on Jack Drake, the father of Batman's partner Robin (Tim Drake). His son Owen Mercer carried on his name and legacy until he was also killed.


George Harkness is a native of Australia, sent to America by his mother, desperate to get him away from his stepfather. He took a job demonstrating boomerangs, but, not being a particularly moral guy, liked to line his pockets with a spot of pilfering as well. This brought him into conflict with the Flash, whom Harkness would oppose, as Captain Boomerang, with a variety of ever more bizarre boomerang gadgets. He would do this both on his own and as a part of the Flash's Rogues.

After the death of the Flash during the event dubbed 'Crisis on Infinite Earths', Captain Boomerang spent a long stretch of time serving on the government-sponsored Suicide Squad. For a while he seemed to reform, but he came back, bad as ever, ready to prove a thorn in the side of the new Flash. However, by now he was washed up, reduced to dealing in (probably fake) Miraclo and similar substances. Shortly after meeting his son, Owen Mercer, Captain Boomerang was hired to kill Jack Drake, the father of Batman's partner Robin (Tim Drake). He succeeded, but was killed himself at the same time.

His son Owen Mercer carried on his name and legacy until he was also killed.

During the event known as the 'Blackest Night', a black ring placed itself amidst his remains, downloaded his memories and created a duplicate of his body that rose from the grave as a member of the Black Lantern Corps. He was brought back to life by the Light Entity, and is active in crime once more.


For a definitive list of appearances of Captain Boomerang in chronological order click here (1960-2011) and here (2011-present)


Who's Who: The Definitive Directory of the DC Universe #4 (June 1985)

Who's Who in the DC Universe #2 (September 1990)