Here is my fan-cast for X-Men: Apocalypse (2016).
NOTE: All current X-Men members in the films will not be included in this fan-cast obviously because they're already cast.
First off, we all know that Apocalypse will take place in the past timeline with the future timeline having some sort of involvement. Therefore, I will be casting only the past characters and not the future since we already know they are.
My choice for Cyclops would be Garret Hedlund. For two reasons, one being that he closely resembles Lucas Till (Havok) which is Scott's brother. Two being that he is one hell of an actor.
My choice for Jean Grey would be Kirsten Dunst, just kidding, but honestly I would pick Stacey Farber. Shes got the look and the chops.
My choice for Apocalypse would be any basic stuntman and Phil Morris as the voice from his work as Vandal Savage in Justice League: Doom.