Michael C Hall
So I'm guessing he has one of the main roles, but I'm wondering if it takes much time to film. It says it is filming now, which is weird, since Dexter starts filming in June. So either the filming will be very fast (like maybe a lot of the scenes are in the same setting), or his role, although a main role, won't be too big.
The summary says that the movie is at the Father's 70th Birthday so I guess it could be that the majority of the movie is in the same setting. We still don't know who he's playing, but I think it would be interesting if he plays the 70 year old father with makeup and things on.