Madison "Maddie" Russell is a character who appears in the Legendary Pictures films Godzilla: King of the Monsters and Godzilla vs. Kong. The daughter of Monarch scientists Mark and Emma Russell, Madison has grown up traveling the world with her mother on field assignments following the death of her older brother Andrew during Godzilla's battle with the MUTOs in 2014. At the start of Godzilla: King of the Monsters, she was living in Monarch Outpost 61 in China's Yunnan Province, where her mother was studying the Titan known as Titanus Mosura. She maintained a distant relationship with Mark, who resigned from Monarch and separated from Emma in 2014, though she contacted him several times a week. In 2019, she witnessed Mothra's emergence from her egg up-close, only to be abducted by the eco-terrorist Alan Jonah along with Emma. After Emma and Jonah's plan to awaken Titans around the world resulted in King Ghidorah using the Titans to devastate the world's ecosystems, Madison stole her mother's sonar device, the ORCA. Using Fenway Park's speakers, she managed to halt most of the Titans' rampages, while summoning Ghidorah and Rodan to Boston for a final confrontation with Godzilla and Mothra.