Talia al Ghul & Damian Wayne appear only in flashback. Clone the creators / characters of this story to another story
While Talia al Ghul does not physically appear, she is present in the form of a letter to Batman. Clone the creators / characters of this story to another story
Harvey Bullock, Harley Quinn, Joker, Sean Riley, Frederick Rhino, Robin & the Ventriloquist appear only in flashback. Clone the creators / characters of this story to another story
Echo, Poison Ivy & Query appear only in flashbacks. Albert Kozer appears alive only in flashback, & as a dead body in the "present". Clone the creators / characters of this story to another story