In the post- Crisis On Infinite Earths continuity, Lex Luthor cloned Superman more than once. While his most successful venture combined his own DNA with Superman’s to create Conner Kent, the first attempt was a failure. In The Man of Steel limited series, Lex Luthor created a clone of Superman that crystallized over time.

Ultraman plays a significant role in James Gunn's new Superman movie. Here's our spoilery breakdown of who he is and how he factors into the story.