influenced by the Marvel Comics supervillain Mysterio. The Phantasm's facade is completed by a masculine voice provided by Stacy Keach, which was digitally altered in post-production to be deeper and echo. Portions of Keach's unmodified performance can be heard in Mask of the Phantasm's theatrical trailer, including the Phantasm's signature phrase: "Your angel of death awaits". The Phantasm's on-screen presence is accompanied by an eerie theme composed by Shirley Walker that prominently features the theremin. Role The screenwriters of Batman: Mask of the Phantasm included Alan Burnett, Martin Pasko, Paul Dini, and Michael Reaves. Pasko wrote many of the flashback sequences (including those featuring Andrea and Reaves) and the final showdown between Batman, the Phantasm, and the Joker. Andrea is based loosely on a combination of Judson Caspian (the Reaper) and his daughter Rachel, characters from the four-issue 1987 "Batman: Year Two" comic book storyline that ran in Detective Comics #575-578. According to Kevin Conroy, Andrea was named after voice director Andrea Romano. In Mask of the Phantasm, producer Alan Burnett "wanted to do a big love story with Bruce because we hadn't really done it on the TV show. I wanted a story that got into his head". Burnett centered Andrea in his conception of the film's story: "We wanted to make a big movie story. We were telling a story about 'the girl who got away'. The one woman who could have stopped Bruce from ever becoming Batman". The resulting narrative, which dealt with Bruce's decision to become and remain Batman, hinged on Bruce and Andrea's relationship. Andrea's role in Mask of the Phantasm corresponds with that of the femme fatale from hardboiled detective fiction and Hawksian woman from film noir. Burnett felt that the film's narrative should be removed from Batman's traditional rogues gallery. The fact that Andrea is revealed as the main villain in a plot twist is a convention of the femme fatale stock character. Andrea serves as a foil for Batman. The characters are very similar; they both don an intimidating costume and speak to the gravestones of their parents (as if holding a conversation with the deceased). The paralleling of their characters — most importantly the death of their parents at the hand of criminals — highlights how different they are: Though they both became vigilantes, Andrea chose to become a killer, following a warped code of "eye for an eye" justice, while