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Deadpool is a fictional character 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 (cover-dated February 1991). Initially Deadpool was depicted as a supervillain 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. Deadpool, whose real name is Wade Winston Wilson, is a disfigured mercenary with the superhuman ability of regeneration and physical prowess. The character is known as the “Merc with a Mouth” because of his tendency to talk and joke constantly, including breaking the fourth wall for humorous effect and running gags.
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The character’s popularity has seen him featured in numerous forms of other media. In the 2004 series Cable & Deadpool, he refers to his own scarred appearance as “Ryan Reynolds crossed with a Shar-Pei” (though in the comic, Reynolds’ name is misspelled as “Renolds”). Reynolds himself would eventually portray the character in the X-Men film series, appearing in X-Men Origins: Wolverine (2009), Deadpool (2016), and its sequel Deadpool 2 (2018). Reynolds attributes Cable & Deadpool #2 to what got him hooked on the character and inspired him to bring the character to the movies. He is confirmed to continue playing the character in the Marvel Cinematic Universe.