Orca is the name of two fictional anti-hero characters who appear in American comic books published by DC Comics, commonly known as one of the adversaries to the superhero Batman.

King Shark is a supervillain appearing in comic books published by DC Comics. The character, also known as Nanaue, was created by writer Karl Kesel and artist Tom Grummett. King Shark's first key appearance was in Superboy #0 as a cameo before making his first full appearance in Superboy #9. The character serves as an adversary to Aquaman, Flash, Batman, and Superboy.