Director Bryan Singer has confirmed the presence of a mutant named Caliban in “X-Men: Apocalypse.” In his latest behind-the-scenes Instagram tease, Singer shared the shot of Caliban’s “place of business.” In the photo, Singer and the production crew appear to be shooting a scene in a dingy dome-shaped tunnel. A series of lamps can be seen suspended from the ceiling and Singer appears to be giving a cue for the shot. According to Web speculation the scene could take place in a sewer or a subway tunnel, which is the typical home of Caliban.

In the comics, Caliban is an albino mutant and belongs to the community of Morlocks. He has the ability to track other mutants and was recruited by Callisto. Later, Apocalypse genetically alters Caliban’s strength and size and gives him a place of his Horseman. After coming under the influence of Apocalypse, Caliban turns from a gentle creature to a more intelligent and aggressive one. The character first appeared in “Uncanny X-Men” No. 148.

It has yet to be revealed which actor will play Caliban. It is also being speculated by Comingsoon that Caliban will have a connection to Ryan Reynolds' film, “Deadpool,” as the film reportedly features one of Caliban’s associates, Angel Dust.

Singer is directing “X-Men: Apocalypse” from a screenplay by Simon Kinberg. The cast includes James McAvoy, Michael Fassbender, Jennifer Lawrence, Nicholas Hoult, Oscar Isaac, Rose Byrne, Tye Sheridan, Sophie Turner, Alexandra Shipp, Kodi Smit-McPhee, Evan Peters, Lucas Till, Ben Hardy, Lana Condor and Olivia Munn. Singer, Kinberg, Dan Harris and Michael Dougherty have conceptualized the story.  

“X-Men: Apocalypse” is the ninth installment in the “X-Men” series and is the sequel to “X-Men: Days of Future Past.” It is being shot in a Montreal studio and will feature Issac as the main villain Apocalypse. The plot of the film is unknown. It will open in theaters May 27, 2016.