Fan Casting ''I am what remains'' in Batman: The Dark Knight Returns - Part II

In the Post-Credits Scene for the film, after everyone leaves Bruce Wayne's funeral, Carrie Kelly stays, mourning for her fallen mentor. Suddenly, a voice behind her says, ''Did he really think he would walk away from that alive?'', and she turns around, seeing a young man with black hair and scars all over his face. Carrie then asks who he is, to which the man laughs, and asks, ''He really didn't tell you about me?'' before continuing on by saying, ''The boy he trained to be his Robin... That boy is gone. I am what remains.'' and finishes by saying, ''Some people refer to me as a 'Red Hood'. But you, Carrie Kelly... You can call me.. Jason.''