My Favorite Martian: Celebrating the Martian Manhunter
Today is the anniversary of the first appearance of J'onn J'onzz, also known as the Martian Manhunter, the green skinned telepathic shapeshifter who has historically been all but inseparable from DC's Justice League comics.
J'onn made his debut in Detective Comics #225, in a backup strip written by Joe Samachson and Jack Miller, and drawn by Joe Certa. In this story, Dr Erdel uses a robot-brain and teleportation to capture something from space --- as one does --- and what he captures is J'onn J'onzz. The man who brings J'onn to Earth dies not long afterwards of natural causes, and J'onn decides that he is going to use his amazing powers to help humanity --- as long as he doesn't run afoul of his one weakness, fire.