Parasite is the name of several supervillains appearing in American comic books published by DC Comics. Each iteration of the character has the ability to temporarily absorb the life force, attributes, memories, and superpowers of anyone through physical touch. The most well-known and recurring incarnation is Rudy Jones, who has become one of Superman's most enduring enemies and belongs to the collective of adversaries that make up his rogues gallery. In 2009, Parasite was ranked as IGN's 61st Greatest Comic Book Villain of All Time.

"Whatever Happened to the Man of Tomorrow?" is a 1986 American comic book story published by DC Comics, featuring the superhero Superman. Written by British author Alan Moore with help from long-time Superman editor Julius Schwartz, the story was published in two parts, beginning in Superman #423 and ending in Action Comics #583, both published in September 1986. The story was drawn by long-time artist Curt Swan in one of his final major contributions to the Superman titles and was inked by George Pérez in the issue of Superman and Kurt Schaffenberger in the issue of Action Comics. The story was an imaginary story which told the final tale of the Silver Age Superman and his long history, which was being rebooted following the events of Crisis on Infinite Earths, before his modern introduction in the John Byrne series, The Man of Steel.