Owen Mercer

He finally met his father when Boomerang contacted the Calculator to track him down. Captain Boomerang at first was nervous about meeting his son but Owen spoke to him first. Owen expressed admiration for his famous father and the two hit it off. While praticing throwing boomerangs, Owen saved his father from a razorang by running at superspeed. It was then that Boomerang revealed that Golden Glider was not Owen's mother despite what a tabloid story said.

Captain Boomerang swore to make the two of them famous so he took a job to kill Jack Drake, the father of the third Robin (Tim Drake). The job went sour and both Drake and Boomerang were killed