John Constantine first appeared in 1985's Swamp Thing comic book while Alan Moore wrote it. He eventually went on to lead his own comic titled Hellblazer. John Constantine is a con man and occult expert who dabbles in magic but primarily uses his metaphorical silver tongue to escape sticky situations. In 2005, Keanu Reeves brought the character to life on the silver screen. Initially, this film was divisive with fans of the source material, primarily because Reeves didn't fit the character's look, as Constantine more aptly fits the description of musician Sting.