Steel (John Henry Irons) the comic book tie-in of "Justice League Unlimited". Steel (John Henry Irons) Steel (John Henry Irons) also known as the Man of Steel is a fictional comic book superhero in DC Comics. Introduced in 1993 as one of several replacement characters for the then-deceased Superman, Steel continued to be an independent superhero after Superman's resurrection. He received his own ongoing series which saw him move from Metropolis to Washington, D.C. and join the Justice League of America in Grant Morrison's "JLA". He later mentored his niece Natasha Irons who became a superheroine herself. First appearing in "The Adventures of Superman"
Calendar Man Calendar Man Calendar Man (real name Julian Gregory Day) is a fictional supervillain appearing in American comic books published by DC Comics, as an enemy of the superhero Batman. Calendar Man is known for committing crimes that correspond with holidays and significant dates. He often wears costumes to correlate with the date of the designated crime. In his first debut, many readers found the character as a joke villain, but in later years, writers developed Calendar Man as a more dark, disturbed serial killer that toys with Batman. Calendar Man first appeared in "Detective Comics" #259 (Sept. 1958) and was