in other media Eraser appears in The Lego Batman Movie. He is among the Batman villains recruited by Joker to take part in his attacks on Gotham City. Dr. Saul Erdel Dr. Saul Erdel is a scientist in the DC Universe. Dr. Saul Erdel was a brilliant scientist who created a transmitter to communicate with other worlds. When he sent a transmission to Mars, a beam of energy reached across the space-time continuum, grabbed hold of J'onn J'onzz, the Martian Manhunter, and transported him to Earth. The shock of seeing the Green Martian caused the elderly scientist to have a heart attack and die in J'onn's arms. His DC Rebirth version appeared in a flashback renamed Mark Saul Erdel. Dr. Saul Erdel in other media In Justice League: The New Frontier, the film adaptation of the DC: The New Frontier comic book miniseries, Dr. Saul Erdel plays a minor role. Dr. Saul Erdel operated in an observatory outside of Gotham City's observatory. While conducting an experiment to sending radio signals into deep space, his experiment somehow accidentally teleported the Martian Manhunter (J'onn J'onzz) into his observatory. Erdel was surprised of J'onn's appearance and suffered a fatal heart attack. Before succumbing to his death, Erdel somberly apologized J'onn for stranding him on Earth and warns that human society will not take too kindly to him as people will fear him because of his appearance, and strongly recommended to him not to reveal himself and take the time to study humanity, using his image for a while before becoming a GCPD Detective. Erdel makes a non-speaking cameo in a flashback in Justice League: Crisis on Two Earths. Etrigan the Demon Sarah Essen Sarah Essen, also as Sarah Essen Gordon, is a character in DC Comics. Appearing in Batman #405, part of the Batman: Year One storyline, she is a detective partnered with then-lieutenant James Gordon. A woman of German accent, her age is never revealed, but in Greg Rucka's novelization of "No Man's Land" storyline she is said to be 12 years younger than Gordon. Sarah's detective skills are shown during her attempts with Gordon to catch Batman, by guessing (correctly) that he is Bruce Wayne by virtue of his history and the money needed for Batman's arsenal. She and Gordon, who was married at the time, start a brief affair, but a corrupt Commissioner Gillian B. Loeb attempts to blackmail them;