Manson also added: "Yeah, she comes out of the shadows and for the first time we're meeting someone who knows more than us.has a dark past, which has left her traumatized. Graeme Manson called her "mysterious" and Fawcett added that M.K. has been announced to be featured in season 4. Don't be surprised, but don't get your hopes up." Ari Millen also confirmed that there will be clones introduced but when asked if he could divulge any more details beyond that he said, "It's a clone show, you never know.There's also been some talk about an Orphan Black video game.Kevin Hanchard will “be big this year” as Detective Bell.Ari Millen officially confirmed that he is set to return in the upcoming season 4 of Orphan Black, on November 5th as Mark Rollins, the last CASTOR clone standing, and that fans will witness his character make a big twist in season 4.Graeme hints that even though Sarah is busy with her personal mission, she will nevertheless find some time for engaging in an intimate relationship. Moreover, executive producer Graeme Manson teased during The Paley Fest that the production team is planning for something explosive as Sarah reconnects with Cal ( Michiel Huisman).Thus, the show will be diving into stories that tie “back to the beginning” of the entire series. This can also lead her to revert to her old habits, going back to being irresponsible self. As her investigation progresses, Sarah will be alienating her loved ones. In addition to that, she will follow Beth's trail down the rabbit hole to find some answers. On the other hand, Beth's death will push Sarah to begin her own investigation and figure out once and for all how the clones were made.Production began again on September 28, 2015.After introducing Krystal Goderitch in Season 3, her role will be expanded more in Season 4.There will be new clones introduced that will be portrayed by Tatiana Maslany.