Y'Mera Xebella Challa is a superheroine appearing in American comic books published by DC Comics. Created by Jack Miller and Nick Cardy, the character first appeared in Aquaman #11 (September 1963).[1
Casting some actors and actresses in James Gunn’s DCU, who haven’t yet been in a DCU movie… Most of Gunn’s friends will be absent from this story, hence the Gunn’s friends story! ;)