Outlander stars Sam Heughan and Caitriona Balfe, who play Claire and Jamie Fraser in the hit show, are incredibly close friends.
The pair often get up to hijinx together, from taking hilarious behind the scene's pics and videos to spending the night downing whisky together.
However, there is one thing that Sam won't share with her and that's the secret Diana Gabaldon let him in on. The Scottish star revealed in a recent interview with Esquire, that the author, who is currently writing the last Outlander book in the series, told him what will happen at the end of the entire series.
