The leaked Batman Arkham Knight voice actors credits list confirms that Damian Wayne, Nightwing, Superman and Azrael would appear in the game.

IMDB put out a list where the voice actors for the game were credited and Damian Wayne, Nightwing, Superman and Azrael was placed on that list.

While Rocksteady hasn't confirmed anything about these characters appearing on the game, fans have already speculated about the appearance of each character.

With Robin and Nightwing being playable characters in the Batman: Arkham City, fans have speculated that those two could be playable again in Batman Arkham Knight.

It has been speculated that there would be a small reference to Superman in Batman: Arkham Knight via radio reports of his exploits in Metropolis but this news confirms that the Batman: Arkham Knight Superman appearance will happen. Let's hope Rocksteady makes him playable in challenge modes or what not.

Aside from the Batman: Arkham Knight Superman appearance confirmation, the Arkham Knight's secret identity may have been confirmed as well!

It has been revealed that James Horan is the voice actor for the Arkham Knight and while he did portray the various henchmen in the game, there is one character that he consistently portrayed in the Arkham Franchise, Jack Ryder.

Jack Ryder has always been the reporter that always gets himself into trouble and Batman always has to save him but what if that was just a cover-up? What if he is actually the Arkham Knight?

Keep in mind that Batman is the real personality of Bruce Wayne and his Bruce Wayne persona is really just his "mask" could it be the same for Jack Ryder?

What do you think about the Batman Arkham Knight Superman appearance? Sound off in the comments section below!