Question: The character that Gavin Hammond voiced in Batman Begins first appeared where? 
Context: The Dark Knight is a 2008 superhero film directed, co-produced, and co-written by Christopher Nolan.  Featuring the DC Comics character Batman, the film is the second part of Nolan's "The Dark Knight Trilogy" and a sequel to 2005's "Batman Begins", starring an ensemble cast including Christian Bale, Michael Caine, Heath Ledger, Gary Oldman, Aaron Eckhart, Maggie Gyllenhaal and Morgan Freeman.  In the film, Bruce Wayne/Batman (Bale), Police Lieutenant James Gordon (Oldman) and District Attorney Harvey Dent (Eckhart) form an alliance to dismantle organized crime in Gotham City, but are menaced by a criminal mastermind known as the Joker (Ledger) who seeks to undermine Batman's influence and create chaos. The Dark Knight Rises is a 2012 superhero film directed by Christopher Nolan, who co-wrote the screenplay with his brother Jonathan Nolan, and the story with David S. Goyer.  Featuring the DC Comics character Batman, the film is the final installment in Nolan's "Batman" film trilogy, and the sequel to "Batman Begins" (2005) and "The Dark Knight" (2008).  Christian Bale reprises the lead role of Bruce Wayne/Batman, with a returning cast of allies: Michael Caine as Alfred Pennyworth, Gary Oldman as James Gordon, and Morgan Freeman as Lucius Fox.  The film introduces Selina Kyle (Anne Hathaway), and Bane (Tom Hardy).  Eight years after the events of "The Dark Knight", merciless revolutionary Bane forces an older Bruce Wayne to resume his role as Batman and save Gotham City from nuclear destruction. Rachel Dawes is a fictional character who first appeared in Christopher Nolan's 2005 feature film "Batman Begins".  She was portrayed in that film by Katie Holmes, with Emma Lockhart as a younger version of the character in early scenes.  Holmes also voiced the character in the video game adaptation.  Maggie Gyllenhaal replaced Holmes in the 2008 sequel "The Dark Knight" after Holmes chose not to reprise the role.  Gyllenhaal also appeared as Dawes on the viral marketing website "I Believe in Harvey Dent", giving Harvey Dent her endorsement in the District Attorney election. Henri Ducard is a fictional comic book character appearing in books published by DC Comics, usually as a supporting character in stories featuring Batman.  Created by writer Sam Hamm, Henri Ducard's first appearance was in "Detective Comics" #599 (April 1989), as part of the "Blind Justice" story arc that Hamm, the screenwriter of the 1989 "Batman" film, was asked to guest-write by editor Denny O'Neil.  The character (amalgamated with Ra's al Ghul) appeared in the film "Batman Begins" portrayed by Liam Neeson. Batman Begins is a 2005 superhero film based on the DC Comics character Batman, co-written and directed by Christopher Nolan and starring Christian Bale, Michael Caine, Liam Neeson, Katie Holmes, Gary Oldman, Cillian Murphy, Tom Wilkinson, Rutger Hauer, Ken Watanabe and Morgan Freeman.  The film reboots the "Batman" film series, telling the origin story of Bruce Wayne from his initial fear of bats and the death of his parents to his journey to become Batman and his fight to stop Ra's al Ghul and the Scarecrow from plunging Gotham City into chaos.  Comic book storylines such as "The Man Who Falls", "" and "" served as inspiration. Batman Begins is a 2005 video game.  It was released June 14, 2005, a day before the release of "Batman Begins".  It was developed by Eurocom and published by Electronic Arts in conjunction with Warner Bros.  Interactive Entertainment and DC Comics.  It was released on Game Boy Advance, GameCube, PlayStation 2 and Xbox.  The film's original cast provided a voice-over reprisal in the game, with the exception of Gary Oldman, who portrays James Gordon, replaced by Gavin Hammon. The Batman vs. Dracula is a 2005 animated movie based on "The Batman" television series.  It premiered on television and was later released on home video.  It has a much darker tone than the show, and features Vicki Vale (in her first animated appearance, voiced by Tara Strong, who voiced Barbara Gordon / Batgirl on "The New Batman Adventures").  The movie was released to DVD on October 18, 2005 and made its television debut on Cartoon Network's Toonami block on October 22, 2005.  It was released on DVD as a tie-in with the live action "Batman Begins."  When the film was first aired on TV, the TV rating given was TV-Y7-FV as it was assumed that it was going to be in the same tone as the kids TV series.  Subsequent airings have carried a TV-PG-V rating. The fictional superhero Batman, who appears in American comic books published by DC Comics, has appeared in various films since his inception.  Created by Bob Kane and Bill Finger, the character first starred in two serial films in the 1940s, "Batman" and "Batman and Robin".  The character also appeared in the 1966 film "Batman", which was a feature film adaptation of the 1960s "Batman" TV series starring Adam West and Burt Ward, who also starred in the film.  Toward the end of the 1980s, the Warner Bros. studio began producing a series of feature films starring Batman, beginning with the 1989 film "Batman", directed by Tim Burton and starring Michael Keaton.  Burton and Keaton returned for the 1992 sequel "Batman Returns", and in 1995, Joel Schumacher directed "Batman Forever" with Val Kilmer as Batman.  Schumacher also directed the 1997 sequel "Batman & Robin", which starred George Clooney.  "Batman & Robin" was poorly received by both critics and fans, leading to the cancellation of "Batman Unchained". Sam Hamm (born November 19, 1955) is an American screenwriter.  Hamm is known for co-writing the screenplay for Tim Burton's "Batman" and story for "Batman Returns".  As a result of his work, he was invited to write for "Detective Comics".  The result was "Batman: Blind Justice", which introduced Bruce Wayne's mentor, Henri Ducard, who later appeared in "Batman Begins".  Hamm's other screen credits include "Never Cry Wolf" and "Monkeybone".  Hamm also wrote unused drafts for "Planet of the Apes" and "Watchmen" adaptations. James "Jim" Gordon is a fictional character appearing in American comic books published by DC Comics, most commonly in association with the superhero Batman.  The character debuted in the first panel of "Detective Comics" #27 (May 1939), Batman's first appearance, where he is referred to simply as Commissioner Gordon.  The character was created by Bill Finger, but credited to Bob Kane.  Commissioner Gordon made his debut as an ally of Batman, making him the first Batman supporting character ever to be introduced.
Answer: "Detective Comics" #27