Martin Joseph

Warden Martin Joseph is the warden of Blackgate Penitentiary.

Batman: Arkham Origins
Warden Joseph was the warden of Blackgate. One year on Christmas Eve, he was attacked by Black Mask's men in order to get access into the prison. After threatening Joseph's family and burning his left eye out with a cigar, Joseph let them in the prison. One of Black Mask's men tried to kill Joseph in order to tie up loose ends, but Joseph was saved by Batman just in the nick of time.