Xero (usually lettered as Xerø) is a fictional superhero and antihero published by DC Comics.

The character of Xero starred in his own self-titled series that was published for 12 issues by DC Comics in 1997 and 1998.

The character's public identity is Coltrane "Trane" Walker, an African-American professional basketball player.

He operates secretly as a technologically enhanced "closer" – an agent who can be counted on to tie up loose ends in espionage operations, including the elimination of witnesses – in the guise of a masked, blond, white man, code-named "Xero".

[1] Unusually for a comic set in an established publisher-owned universe, "Xerø" was half creator-owned: though all the characters featured in the book belong to DC Comics, Priest co-owns copyright to the stories and art.