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?
Context: Batkid is the superhero name of Miles Scott, an American child and cancer survivor.  His wish was to be "Batkid", a sidekick of the eponymous comic book superhero Batman, the subject of books, radio, television, and films.  Once the request went out, thousands of volunteers, city officials, businesses and supporters rallied to turn San Francisco, California into "Gotham City" – the fictional home city of Batman – on November 15, 2013 for one of the largest and most elaborate Make-A-Wish projects ever staged. Goldballs (Fabio Medina) is a fictional comic book superhero appearing in American comic books published by Marvel Comics, usually as a member of the X-Men or as a supporting character in stories featuring the Miles Morales version of Spider-Man. Kid Flash is the name of several fictional characters appearing in comic books published by DC Comics, originally created by John Broome and Carmine Infantino, as a junior counterpart to DC Comics superhero The Flash.  The first version of the character, Wally West, debuted in "The Flash" (vol.  1) #110 (1959).  The character, along with others like the first Wonder Girl, Aqualad, and Speedy, was created in response to the success of Batman's young sidekick Robin.  These young heroes would later be spun off into their own superhero team, the Teen Titans.  As Kid Flash, Wally West made regular appearances in Flash related comic books and other DC Comics publications from 1959 through the mid-1980s until the character was reinvented as the new version of The Flash. Batman is a fictional superhero appearing in American comic books published by DC Comics.  The character was created by artist Bob Kane and writer Bill Finger, and first appeared in "Detective Comics" #27 (1939).  Originally named the "Bat-Man", the character is also referred to by such epithets as the Caped Crusader, the Dark Knight, and the World's Greatest Detective. Batkid Begins is a 2015 American documentary film co-produced (with Liza Maek), co-written (with Kurt Kuenne) and directed by Dana Nachman.  The documentary follows Miles Scott, an American child and cancer survivor.  His wish was to be "Batkid", a sidekick of the eponymous comic book superhero Batman.  Once the request went out, thousands of volunteers, city officials, businesses and supporters rallied to turn San Francisco, California into "Gotham City" – the fictional home city of Batman, on November 15, 2013, for one of the largest and most elaborate Make-A-Wish projects ever staged.  The film was released by Warner Bros.  Pictures on June 26, 2015. Lucas "Snapper" Carr is a fictional character appearing in American comic books published by DC Comics.  The character, whose fictional nickname is almost always used by other characters in favor of his given name, was created by Gardner Fox (writer) and Mike Sekowsky (penciller), and made his first appearance in "The Brave and the Bold" in February 1960.  From 1960 to 1969, Snapper Carr appeared as a supporting character to the Justice League of America, a superhero team.  The character occasionally appeared in comics featuring the Justice League from 1969 to 1989, when the "Invasion! " limited-series comic book gave him superpowers.  He was associated with a new superhero team, The Blasters, in various comics until 1993, when he lost his powers and became a main character in the "Hourman" comic book.  After the cancellation of "Hourman" in April 2001, he became a main character in the "Young Justice" comic book beginning in December 2001.  "Young Justice" was cancelled in May 2003, and he became associated with the governmental organization Checkmate, a role revealed when the character played a small but important role in the 2007-2008 limited series comic book "52 Aftermath: The Four Horsemen".  The character made major appearances in "Final Crisis: Resist" in December 2008 and "Justice League of America 80-Page Giant" in November 2009. Voodoo is a fictional comic book superhero, appearing in books published by DC Comics.  Created by writer Brandon Choi and artist Jim Lee, she first appeared in "WildC.A.T.S."  #1 (August 1992), which was produced by Jim Lee's studio, WildStorm comics, and published by Image Comics.  After WildStorm and its properties were purchased by DC Comics in 1999, the character continued as a character in books under the WildStorm imprint, until DC discontinued the WildStorm imprint in December 2010. Superman is a fictional superhero appearing in American comic books published by DC Comics.  The character was created by writer Jerry Siegel and artist Joe Shuster, high school students living in Cleveland, Ohio, in 1933.  They sold Superman to Detective Comics, the future DC Comics, in 1938.  Superman debuted in "Action Comics" #1 (cover-dated June 1938) and subsequently appeared in various radio serials, newspaper strips, television programs, films, and video games.  With this success, Superman helped to create the superhero archetype and establish its primacy within the American comic book.  The character is also referred to by such epithets as the Big Blue Boy Scout, the Man of Steel, the Man of Tomorrow, and the Last Son of Krypton. The Vision (Aarkus) is an American fictional comic book superhero who appeared in comic books published by Marvel Comics during the Golden Age of comic books.  Created by the writer Joe Simon and artist Jack Kirby, the character first appeared in "Marvel Mystery Comics" #13 (Nov. 1940), published by Marvel predecessor Timely Comics. Roy Harper is a fictional superhero appearing in American comic books published by DC Comics.  Roy is one of DC's most longstanding characters, originating in 1940s comics as Speedy, the teen sidekick of the superhero Green Arrow.  Like his mentor Green Arrow, Roy is a world-class archer and athlete who uses his exceptional marksmanship to fight crime.  Along with other prominent DC Comics superhero sidekicks, he goes on to become a core member of the superhero group the Teen Titans.  As an adult, Roy casts off his Speedy identity to establish himself as the superhero Arsenal, and for a time adopts the name Red Arrow to symbolise his having become an equal of Green Arrow.  As well as continuing to serve as one of the Titans at various times, Roy has had leading roles in the superhero groups the Seven Soldiers of Victory, the Outsiders, the Justice League, and the Outlaws.
Answer: Batman