Deadpool appears in 1621 issues.
Wade Wilson is a former test subject of the Weapon X program, possessing a regenerative healing factor (like that of Wolverine), as well as an unstable compiling of other "Weapon X" experiments. Deadpool's powers and personality traits combine to make a wild, mentally unstable, and unpredictable mercenary. Deadpool is a former member of X-Force, a self-professed member of the X-Men and Avengers and has recently joined the Thunderbolts. The "Merc with a Mouth" is infamous for breaking the fourth wall.