Antagonist and Jamie’s father. Creator of the parasites that caused the 1989 tragedy. Operates as a mysterious figure, kidnaps Jamie, and claims to have developed an antidote. Killed by Jamie using salt water, which releases the parasites.
Mason's forces act as the primary threat that leads to Marco's demise.
Mason and Dr. Macavire worked together on the initial evolution project.
Explore the full interactive character relationship map of Growth