Deadpool (Wade Winston Wilson) is a fictional antihero appearing in American comic books published by Marvel Comics. Created by writer Fabian Nicieza and artist/writer Rob Liefeld, the character first appeared in The New Mutants #98. Initially he was depicted as a super villain when he made his first appearance in The New Mutants and later in issues of X-Force, but later evolved into his more recognizable antiheroic persona.
A disfigured and deeply disturbed mercenary and assassin , Wade has the superhuman ability of an accelerated healing factor and physical prowess. He is also known as the “Merc with a Mouth” because of his tendency to joke constantly, including his proclivity for breaking the fourth wall, a literary device used by the writers for humorous effect and running gags.
The character’s popularity has seen him feature in numerous other media. In the 2004 series Cable & Deadpool, he refers to his own scarred appearance as “Ryan Reynolds crossed with a Shar Pei”. Reynolds himself eventually portrayed the character in the X-Men film series, appearing in X-Men Origins: Wolverine (2009), Deadpool (2016) and the upcoming Deadpool 2 (2018).