Deadpool, created by Rob Liefeld, first appeared in comic books in 1991. However, it wasn't until the 2016 film adaptation, starring Ryan Reynolds, that the character gained mainstream success. Deadpool's popularity can be attributed to his subversive humor, self-aware wit, and a willingness to defy traditional superhero tropes. The film's success was a global phenomenon, with Deadpool becoming a household name, and his irreverent style influencing a new wave of superhero movies.