Mason Nash is Jessica's baby son and Lainey's younger brother. He remains under Lainey's care while Jessica is trapped and later leaves the house with Jessica and Lainey. Sammy captures him during their attempted escape and holds a knife to his throat, making Mason a direct target of the final confrontation.
Aidan Steimer has 1 screen credits in a career dating back to 2022. Signature works include Shut In. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
