History of character has not yet been written.
- This version of the character is exclusive to the continuity of the animated direct-to-DVD movies beginning with Justice League: War. It is an adaptation of Captain Boomerang. The original character was created by John Broome and Carmine Infantino and first appeared in The Flash #117.
- Captain Boomerang was voiced by Liam McIntyre.
- 8 Appearances of George Harkness (War)
- 5 Images featuring George Harkness (War)
- Quotations by or about George Harkness (War)
- Character Gallery: George Harkness (War)
Suicide Squad member