Batman: Arkham Knight - 10 Villains We Want To See

4. Calendar Man

For the most dedicated Arkham City players, there was a special achievement/trophy that involved going to visit Calendar Man at his prison cell in the court house on several key holidays throughout the year. After doing this, and after talking at length about grisly murders and other criminal activities, Calendar Man mysteriously vanishes from his cell completely, leaving behind two dead thugs with one hanging from the ceiling and the other with his neck snapped. This seems to almost guarantee that Calender Man may finally have more than just a cameo in Arkham Knight. With Rocksteady pulling out the big guns for this one and delivering the biggest Arkham game to date, there's more than enough room for the Calendar Man to wreak havoc. We also know that the events of Arkham Knight take place around a year after Arkham City, which was conveniently around Christmas time. Perhaps the Calendar Man may be spreading a bit of holiday cheer this year?