Originally Posted by EnDz0n3
Are you suggesting an older actor from the future playing Havok time-travel to the past?
No, suggesting that Havok is already the time traveler throughout First Class.
It would not only appease those who are still annoyed by him being "older" than Scott, since he no longer would be. But it would also give him a sense of importance, since his role in First Class is pretty thankless.
It would also explain why everything about him in FC is so... unsixties.