I have previously explained that 2 out of DC Comic’s ‘Big 3’ have become merpeople before, with Wonder Woman missing out on the fun. Well, I was sort of wrong about that?
On Earth 124.1, Wonder-Girl had an adventure where she had been turned into a bird-girl, and later a mer-girl in issue 147 in 1967! Crazy!
Was this the same Wonder Girl that became Wonder Woman? Princess Diana and not Diana Troy? Yes? Sort of? It’s unclear and comics are weird. some sources say that they retconned being created from clay a long time ago and that she did grow up as a child, and then later they un-retconned her… comics are so inconsistent. Example? Wonder Woman’s mother supposedly spliced together scenes of Diana from different ages for home movies… or some crap? So my take on it is that it used to be canon but… isn’t canon?
Mer-Boy was a dude that had a crush on Diana and vice versa. Apparently he later becomes Mer-Man and visits Wonder Woman?
So Wonder Woman, as a child, was briefly a mermaid. I guess this counts, but Batman and Superman were transformed as adults… so it still sucks that we have been denied an adult mermaid Wonder Woman.