Martian Manhunter

The Martian Manhunter (J’onn J’onzz) is a fictional character and superhero in American comic books published by DC Comics. Created by writer Joseph Samachson and designed by artist Joe Certa, the character first appeared in the story “The Manhunter from Mars” in Detective Comics #225 (Nov. 1955). 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.
He has also been featured in other DC Comics products, such as video games, television series, animated films and merchandise like action figures and trading cards.
He appeared in the series Smallville, played by actor Phil Morris. He is part of the core cast of the television series Supergirl, where he is portrayed by David Harewood, and appears on other Arrowverse shows. Harry Lennix portrays him in the DC Extended Universe, making his debut under the guise of General Calvin Swanwick in the 2013 film Man of Steel and the 2016 film Batman v Superman: Dawn of Justice; and appeared in his Martian form in Zack Snyder’s Justice League in 2021.