Overview
Reaper is the name of three characters in the DC Comics universe.
Publication history
The Pre-Crisis Reaper debuted in Batman #237 (Dec. 1971) and was created by Denny O'Neil. The character was inspired by science-fiction writer Harlan Ellison suggesting to O'Neill that he writes a story about Nazi war criminals.
Created by writer Mike W. Barr, and designed by artist Alan Davis, the Judson Caspian version of the Reaper first appeared in Detective Comics #575 (June 1987), the first part of the four-part Batman: Year Two storyline. After the changes in DC continuity that Zero Hour established, Year Two, Joe Chill's death and the Reaper have been wiped out. Chill was back in continuity after 2005's Infinite Crisis. A character dressed as the Reaper has appeared in The New 52, a 2011 reboot of the DC Comics universe, but it has not yet been revealed which (if any) of the previous Reapers is in the costume.
Fictional character biographies
From Wikipedia (CC BY-SA 4.0).