The Lego Movie (franchise) scheduled "The Lego Batman Movie" for a February 10, 2017 release. In July 2015, Arnett's "Arrested Development" co-star Michael Cera was cast to voice Robin. In August 2015, Zach Galifianakis entered final negotiations to voice the Joker. In October 2015, Rosario Dawson was cast to voice Barbara Gordon, the daughter of police commissioner James Gordon who later becomes the crime-fighting heroine Batgirl. The following month, Ralph Fiennes was cast as Alfred Pennyworth, Bruce Wayne's butler. Mariah Carey, although initial reports indicated she was playing Commissioner Gordon, was actually cast as Mayor McCaskill. The first trailer for the film was released
Outsider (comics) box and tells the heroes that the box is not magic, but science, that was created on his world and can only be opened by someone from his world. He explains that the box opens a gateway to another universe, his homeworld; the birthplace of evil. It is revealed that The Outsider is actually from Earth-3 and is that world's version of Alfred Pennyworth who works as the butler to Owlman. During the "Forever Evil" storyline, Pandora tries to get answers from the Outsider on how to reopen the portal to Earth-3, but he points out that she is asking