Fan Casting "The Long-forgotten Parent" in Batman And Batgirl: The Three Jokers

After escaping the Gotham hospital from the sight of Jim Gordon himself outside his room, Bruce heads to Wayne Manor and sees a massive crowd outside the building. This time, he sees his grandparents too, and when he acknowledges them, plus Alfred, they stare at him like they have no idea who he really is. Confused, Bruce breaks into the Manor and runs upstairs to the living room, bumping into someone on the way up. Falling back, Bruce immediately gets back up and apologizes for running into the man, before he stops and his eyes are filled with shock, seeing that he hasn't interacted with this man in years, seeing that he is staring into the eyes of his own father...