Outlaw is the name of two different fictional characters appearing in American comic books published by Marvel Comics. The first Outlaw named Nigel Higgins is England's version of Punisher that first appeared in Punisher #64 and was created by Dan Abnett, Andy Lanning, and Douglas Braithwaite. The second Outlaw named Inez Temple was created by Gail Simone for the series Deadpool and Agent X. She is a mutant with the ability of superhuman strength and an uncanny aptitude with firearms.

Agent X is a fictional mercenary appearing in American comic books published by Marvel Comics. Created by Gail Simone and Alvin Lee, the character first appeared in Agent X #1, by Gail Simone and UDON.