Deadpool (Wade Winston Wilson) is a fictional character, a mercenary and anti-hero appearing in comic books published by Marvel Comics. Created by artist Rob Liefeld and writer Fabian Nicieza, Deadpool first appeared in New Mutants #98 (Feb. 1991).
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A disfigured and mentally unstable mercenary, Deadpool originally appeared as a villain in an issue of New Mutants, and later in issues of X-Force. The character has since starred in several ongoing series, and shares titles with other characters such as Cable. Also known as the "Merc with a Mouth," Deadpool is famous for his talkative nature and his tendency to break the fourth wall, which is used by writers to humorous effect.
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He was portrayed by Ryan Reynolds in the 2009 film X-Men Origins: Wolverine and will appear in his own feature film set to be released on February 12, 2016 also starring Reynolds.