Alfred Pennyworth help in completing 'the Alfred Protocol', an artificial intelligence version of Alfred, created to allow Batman to keep some aspect of his 'father' with him. Once the Alfred Protocol is completed, its fixation on protecting his 'son' results in the A.I. version of Alfred murdering all of Batman's rogue's gallery, permanently merging with his 'son' as part of this goal. In this alternate reality, Nightwing ends an ongoing feud between superpowered beings by activating a device that depowers ninety percent of the super powered population. This builds to a future where super powers are outlawed and any super powered being
Matthew Butler and Matthew Calbraith Perry, for whom Matthew Calbraith Butler is named. His father, William Butler, Jr., was a Congressman beginning in 1841. His uncle Andrew Butler was a U.S. Senator from South Carolina and uncle Pierce Mason Butler was Governor of South Carolina. One of Matthew Butler's first cousins was Congressman Preston Brooks, who assaulted Senator Charles Sumner in 1856 on the floor of the U.S. Senate with a cane. He said it was because Sumner had insulted Senator Andrew Butler, at whose home Matthew lived as a young man. Two of Butler's first cousins twice removed were James Bonham