|“||We don't belong here...||„|
|“||A street-smart investigative photojournalist and self-described “anti-war photographer,” Weaver has seen the monster of humanity at war. Her suspicions sparked, Weaver’s curiosity about the mission’s true purpose drives her to maneuver her way onboard as team photographer. But once they cross over onto Skull Island, she is plunged into the biggest story of her life – one that will confront all her journalistic instincts and ethics.||„|
— Warner Brothers website description
Mason is an "anti-war" photographer that joins the expedition to Skull Island after her contact Jerry tells her she got the job. She intends to expose the "expedition" as a shady operation, but gets caught up in the action when she is stranded on the island along with Conrad and his group.
She is the first human to interact with Kong peacefully, and realizes his true benevolent nature. As such, she, along with Conrad and Marlow, try to save Kong from Packard, and later aid him in the battle with the biggest Skullcrawler by firing a flare into its eye and blinding it. During the fight, she is thrown into the water, where she nearly drowns, but is saved by Kong who scoops her from the swamp, kills the Skullcrawler trying to eat her, and gently laying her on the bank. She is later rescued by helicopters along with the other survivors.
- The novelization reveals that Weaver's father was a demanding but well-meaning man who loved her despite being unintentionally emotionally abusive to her. He died when she was sixteen and according to Mason, her father ran their home in a style similar to a "benevolent dictatorship".
- In the film, Weaver makes it off Skull Island with her film intact, while in the novelization, her film is ruined when she falls into the river. The book also explains that Weaver's camera acts as a barrier between her and the events going on around her.