Will Jason Isaacs ("Hap") and the other cast members come back?
Though it was centered around Prairie's journey of self-discovery, The OA had a large cast with numerous subplots. It makes sense that fans are hoping the show will provide some new adventures for the high school characters Steve, Jesse, Buck, French, and their teacher BBA. And what about the evil Dr. Hap? You can't have The OA without Dr. Hap, right?
There's very little concrete casting info online about who will be back for Season 2. Some of it might come down to scheduling and availability. In addition to having a very funny role in the recent comedy The Death of Stalin, Jason Isaacs was one of the leads on Star Trek: Discovery, and while it looked like a one-off season for the actor, the spacetime-bending rules of the sci-fi series mean anything's possible for his schedule. He's clearly a fan of Trek -- last year he told Deadline he had never encountered something as" imaginative, as creatively free as the story they came up with" -- but it's unclear if he find his way back there. Which could be music to The OA fans' ears.
Brooklyn singer-songwriter Sharon Van Etten, who played one of Dr. Hap's captives named Rachel and had a role in David Lynch's Twin Peaks reboot, has been vague about the possibility of Season 2. "I have no idea," she told Billboard back in 2017. "I can honestly say that they haven't told me anything. I don't know if anything happens next or what happens next. If they do something, I would love to be a part of it. I definitely want to know what happens to my character."
The same goes for the younger actors in the cast. Brandon Perea, who played "French" in Season 1, did tweet some photos of him hanging out with his fellow cast members Ian Alexander, Brendan Meyer, and Patrick Gibson. Were they going on a family field trip while taking a break from shooting scenes for Season 2? We'll have to wait and see.