Editing Minister Mason (section)

== Throughout the film==
'''Minister Mason''' appeared at the Tail section to punish [[Andrew]] for the shoe that he throws at Claude and injured her. She froze the man's arm while giving speech to the Tail passengers. Gilliam asked her if he could speak to Mr. Wilford, but Mason disagree and told him to pass the message to her, which Gilliam refused.

Mason appeared again when ''Snowpiercer'' is about to pass the Yekatrina Bridge. She commands the soilders to fight the Tailie rebels, in which they lost and Mason got captured as a hostage. Mason leads Curtis, Minsoo, Yona, Tanya, Andrew and Grey through more cars uptrain.

When they reaches the classroom, there was a fight which Teacher killed Andrew, and Grey killed the Teacher. The television in the classroom changed to how Gilliam is killed by [[Franco the Elder]]. [[Curtis Everett|Curtis]] then executes her as a revenge. She is stuck in her undying loyalty to Wilford.