I think we can say this with fair certainty now, despite his Latergram today.
I did NOT come up with this news, it was a commenter on thespoilingdeadfans I believe, who noticed Norman and Steven had followed this actor.
Today some had a wobble it was him when he posted a photo of himself on a Swedish beach. However, digging reveals that he was on that beach 10 weeks ago with his girlfriend:
So, throwing us off the track but look at the profiles:
And if that wasn’t enough, TSDF posted the casting call on 14 Aug:
And look who was at an audition on 17 Aug:
