Sonar is a name used by several villains with sonic powers in the DC Universe, usually antagonists to Green Lantern. The original version was the rogue monarch of Modora, using his sound technology to commit crimes and exert political influence. There would be another villain named Sonar who fought the Doom Patrol. The third Sonar was apparently the son of the original, and repeatedly fought Kyle Rayner. He has been involved with the Secret Society of Super-Villains. Sonar was created by John Broome and Gil Kane, first appearing in Green Lantern (Volume 2) #14. (1962)

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