Captain Boomerang is a lean Caucasian male. He has brown hair with large sideburns up to his nasolabial folds. He has a large aquiline nose and thick lips.
He wears a combo consisting of blue gray pants, a light blue shirt and a navy blue duster. He wears a beanie hat that matches with his coat, adorned with a silver boomerang placed like an inverted chevron. He wears more boomerangs in a black bandolier over his left shoulder.
Captain Boomerang is an Australian Flash villain with varying degrees of competence throughout his publication history. He is also one of few mainstays in the Suicide Squad, surviving for years even though no one liked him.
This is his sixth animated appearance. He appeared in Justice League Unlimited, Batman: The Brave and the Bold, Justice League: Flashpoint Paradox, Batman: Assault on Arkham and Suicide Squad: Hell to Pay.