Scarlet Witch

Besides Ant-Man, Scarlet Witch is the heavy-hitter who has all the reasons to be anti-registration. Her family was killed by Tony Stark’s weapons, her involvement in the Age of Ultron events against the Avengers was basically one against Iron Man, and she actually was welcomed into the team by Hawkeye. So we guess we know who she will side with during Civil War…

Furthermore, given her role

Unless… Unless she actually sees Vision as being more than just an upgraded toaster…

On the next page, the Switzerland of Civil War