The White Martians are one of four fictional extraterrestrial races native to Mars in the DC Comics' shared universe. White Martians, also known as Pale Martians, appear in the comics of the DC Universe, chiefly JLA, Martian Manhunter, and Son of Vulcan. They first appeared in Justice League #71.
JLA #89: Fernus vs. Plastic Man, art by Doug Mahnke.
The Martian Manhunter is a superhero appearing in American comic books published by DC Comics. Created by writer Joseph Samachson and artist Joe Certa, the character first appeared in the story "The Manhunter from Mars" in Detective Comics #225. Martian Manhunter is one of the seven original members of the Justice League of America and one of the most powerful beings in the DC Universe.
J'onn J'onzz, trying (and failing) to relax in his true form and reflecting on his history with the League
Martian Manhunter as he appears in Zack Snyder's Justice League (2021).