I really liked the way Stewart acted in the final scene. It was a very serious moment when Logan was walking around the mansion and seeing everyone alive, and then bam we have Scott being Scott and then Professor X acting totally different than how grim he was in the prior timeline. I thought it was very good humor and added to the hopefulness and the warmth of the future.

He was the one who made a final push to the younger Prof X to go on and use his power to find Mystique and stop her. 



