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Ronno (Earth-One)

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Quote1 You are the prettiest fish I have ever seen! Quote2
-- Mer-Boy src

Mer-Boy was a young merman who harbored a romantic interest in the Amazon adventurer, Diana when they were teenagers. When Mer-Boy grew up, he took the name Mer-Man and reunited with Diana, who was now operating under the guise of Wonder Woman.



Strength level

  • Mer-Boy is an excellent swimmer. He is fast and agile in a watery environment and can also breathe underwater.


  • Having no legs, Mer-Boy has difficulty operating outside of the water. When on land he can only move about by awkwardly hopping on his tail fin.
  • This version of Ronno (Earth-One), including all history and corresponding appearances, was initially erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. However the ending of Convergence retroactively prevented that collapse, saving all the alternate realities, though in an "evolved" form. Even though versions of the character may have since appeared, this information does not apply to those versions.
  • As a teenager, Mer-Boy's true name was Ronno. As an adult, he took the name Manno. The purpose behind this name change has never been explained.



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