Question: Batkid is the superhero name of Miles Scott, an American child and cancer survivor, his wish was to be "Batkid", a sidekick of which eponymous fictional comic book superhero, appearing in American comic books published by DC Comics, and the subject of books, radio, television, and films?
Sentence (from "Roy Harper (comics)"): Roy is one of DC's most longstanding characters, originating in 1940s comics as Speedy, the teen sidekick of the superhero Green Arrow.
Relevant evidence: No